This page attempts to offer a useable comparison of travel trailer hitches, ranging from the basic weight distributing hitch with 1-2 sliding friction dampeners to the relatively sophisticated Reese Dual-Cam (although it is essentially still a friction hitch) to the mechanical wizardry of the Hensley Arrow and ProPride (a slightly modified Hensley Arrow also designed by Jim Hensley) to the simplicity of the PullRite that goes straight to the core of the the trailer sway problem -- the leverage that the trailer has on the yaw of the tow vehicle because of the distance between the pivot point (traditionally the ball) and the rear axle of the tow vehicle.  The 5th wheel trailer achieves it's superiority (complete lack of sway) because there is no leverage at all since the pivot point is directly over the rear axle. 

This charts compares the various features & performance of several types of travel trailer hitches. The author has significant personal experience with each of these hitches, except for the ProPride. Since the ProPride is nearly identical to the Hensley Arrow, I've included it in this comparison with the Hensley. The comments and relative scores of these hitches are the opinon of the author. You may disagree.

Note: There is no 'total of scores' category because that would require prioritizing the categories to be of any value. While it's obvious that different people will have different ideas regarding the priorities of the various categories, our own priorities change from time to time according a variety of situations.

Travel Trailer Hitch Comparison Chart
Feature Description Standard Hitch Reese Dual-Cam Hensley Arrow ProPride PullRite
Cost Purchase Price 10 8 3 1
Durability Wear items and/or common faults 9 10 8 7
Ease of Use - Adjustments Ease of making adjustments to the hitch 5 4 10 7
Ease of Use - Critical Adjustments Is proper adjustment critical to the sway control abiliities of the hitch? 5 3 10 9
Ease of Use - Hitching/Unhitching Relative ease of hitching & unhitching.  Reflects mix of advantages & disadvantages 10 9 1 4
Handling - Cheating Degree the trailer cheats in turns 8 7 9 1
Handling - Ease of Manuvering Ease of manuvering forwards & backwards in tight quarters 8 7 10 1
Installation - Overall Ease of installation 10 9 8 1
Installation issues Complications and/or issues during the installation or as a result of the installation 10 10 10 1
Maintenance issues The need for any maintenance will reduce the score.  Degree of maintenance or liklihood of repairs will affect score more than a need for minor maintenance.   10 10 8 3
Porpoising Control Ability to control porpoising of complete vehicle combination 2 1 8 6
Portability Ability to transfer the hitch to another tow vehicle/trailer combination 10 10 10 1
Resale  Resale value 2 3 8 1
Stability - Feeling of The FEELING of stability in situations where trailer sway is a common problem. 1 5 9 8
Stability - True/Ultimate The ultimate ability of the hitch to resist or elminate trailer control problems.  Primarily the ability to eliminate sway under all conditions, but other behavior issues that affect ultimate stability will reduce score, if applicable. 1 2 8 9
Sway Control Ability to control trailer sway at highway speeds 1 4 9 8
Universal fit Ability of the hitch to fit a wide (universal) range of tow vehicle/trailer combinations 10 10 10 1
Comments
# of miles using this hitch 8,000 4,000 24,000 11,000
Cost Competition between Hensley & ProPride has resulted in significant reduction of prices.  PullRite is far & away the most expensive.
Durability PullRite has a wear issue with the W/D bar set screws on the A-frame brackets.  Hensley (ProPride?) have components that are known to break or bend; covered by warranty to the original purchaser only
Ease of Use - Adjustments Adjustments on the Hensley & ProPride are child's play.  The others require adjusting W/D bar tension via chains.  PullRite also has set screws that must be tightened (adjusted) every time the hitch is used, and sometimes during use.
Ease of Use - Critical Adjustments The sway performance of the Reese Dual-Cam is dependent on W/D bar tension (more is better).  Friction sway control is easy, but can affect steering.  Hensley & ProPride are immune to adjustments as far as sway control is concerned.  The PullRite needs to have its set screws tightened properly, minor sway if loose.
Ease of Use - Hitching/Unhitching Hitching/unhitching with the Hensley & ProPride require precise line up of tow vehicle.  PullRite requires some accomodations to attach the 2nd W/D (easy using a Hitch Helper)
Handling - Cheating Hensley & ProPride move the true pivot point aft about 1 foot during backing which increases the max turning angle 5-10 degrees over standard hitches.  The PullRite is limited to 70 degrees (about 10 degrees less).
Handling - Ease of Manuvering Minor advantage to Hensley & ProPride for increased turning angle.  Major disadvantage to PullRite for adding 6 feet to effective trailer length from ball to tow vehicle axle (comparable manuvering to a 6 foot longer 5th wheel, except wihtout the ability to turn 90 degrees).
Installation - Overall Hensley & ProPride are less intuitive than the Reese Dual-Cam which is less intuitive than the standard hitch.  The PullRite 'no drill' model bolts to the tow vehicle chassis easily enough, however it requires removing the OEM hitch first, removing the spare tire (temporarily or permannetly), and rewiring the trailer cable to the end of the swinging tow bar.
Installation issues On relatively rare (older?) trailers with unusual trailer couplers, there may be complications to installing a Hensley or ProPride.  PullRite hitches on some tow vehicles requires relocating the spare tire, welding/cutting/drilling and always requires modifications to the exhaust pipe.  PullRite hitch tow bars swing under the OEM hitch location which affects ground clearance--possible enough to require lifting the rear of the tow vehicle depending on your need for ground clearance
Maintenance issues Hensley & ProPride are subject to worn/loose clevis pins & their holes in the housing.  Hensley is subject to bending the struts under severe loading such as panic braking.  The Propride has a central yoke replacing the struts with an unknown history.  The PullRite is subject to wear on the A-frame brackets due to the normal movement of the W/D bar set screws--ranges from minor to severe depending on type of use (rough roads => severe wear)
Porpoising Control Hensley and ProPride have incredibly easy to adjust W/D bar tension which allows easy fine tuning to control ride.  All others only have a course adjustment via chain links on a bracket.   The Reese Dual-Cam depends on tight W/D bar tension for sway control, which may conflict with the best ride setting.   The heavy duty non-tapered W/D bars on the PullRite are very stiff and require substantial effort to adjust.
Portability The PullRite is designed to fit a very limited range of vehicles--typically a single brand & model.  So it can only be installed on another tow vehicle within the same brand/model range.  All the others are easily transferred to another tow vehicle.
Resale  There is a well established resale market on eBay for used Hensley Arrows.  ProPride hitches can be piggybacked on that if properly marketed.  Reese Dual-Cam hitches are also easily sold on eBay, although their selling price reflects their substantially lower initial cost.  PulRite hitches are difficult to sel used not only because of their limited applications, but also because they are very large & heavy which results in expensive shipping costs.
Stability - Feeling of The Hensley Arrow (& ProPride) FEEL superb at the Interstate.  There apparent stability decreases as the roads start winding and require braking for turns.  The PullRite FEELS somewhat less secure because the W/D bars that are supposed to prevent pivoting at the ball DO flex and allow for some trailer movement.  The Reese Dual-Cam feels better than the standard friction sway control, except in shorter radius turns where the hitch has already turned and is not longer 'in the groove' of the W/D bar.  
Stability - True/Ultimate The PullRite wins this category hands down since the true pivot point is only 11" from the rear axle at ALL times.  Not quite as good as a 5th wheel but better than any of the alternatives for a travel trailer.  The Hensley and ProPride 'virtual pivot point' is approximately 22" from the rear axle when straight, however the virtual pivot point moves sideways and aft in an arc as the radius of the turn becomes smaller.  As a result, in moderate turns the actual pivot point may be much further behind the rear axle AND significantly to the side which can result in a change of handling ranging from quirky to severe.
Sway Control See BOTH stability categories.
Universal fit The PullRite is very vehicle specific and only available for a limited range of trucks and SUVs while the others fit almost any tow vehicle/trailer combination.