That's a nice looking rig. I'm working on a F150 but have been seriously thinking of switching to the Ram. My son runs a 2500 and he's in the process of fixing it up an I love the way it looks.
You'll be puckering up on tight trails with either rig, but the 2500's are a way better overlanding platform in terms of off road performance and upgradability. (It is hard to beat solid axels at both ends). I use my truck for almost everything, so getting the 2500 wasn't worth the sacrifice in fuel economy. I have been very happy with my truck, but there aren't near as many parts available for it as the the F150 you currently have.
Ram 2500 Power Wagon will give you front and rear lockers from the factory, disconnectable sway bar, and warn winch and 2 inches of lift over a standard 2500 4x4. It's funny, but all the work you have to do to put 35's on a 1500, I can run 37's stock. :p
That's why I stopped building my 1500 and just upgraded to the Wagon. The 1500 is a lost cause if you want to get serious.
I daily drive mine.