help deciding on which one

Holiday Ramblers are well made. Many of their features carried over from year to year and Presidential is top of the line. Look at things like frame size, slide out rails and gears on the older and newer units. Newer light weights are fine for occasional weekend use. Most everything in any trailer is supplied by someone else so replacements can be had. Do your homework on specs, but picture you and your family actually camping in the unit.
Your Dodge will pull any of those units with ease.
Good luck with your decision and happy camping.