Which Diesel Truck is better?

I am starting to look for a Diesel truck of some kind, and have narrowed my choice to either a Dodge Ram 2500 or a Ford F-250. Today I took a 1992 Ram 250 for a test drive today, and it was very fun to drive. Next week I am going to try and take a F-250 for a test drive, probally will have the 6.9 or 7.3 liter engine (I can't afford one with a Powerstroke)...

Now my question, which one is a better truck? The reason I am asking this is that it looks like I might be needing a larger truck for a future job that I might be getting, oh, and it needs to be a 4x4.

btw, I will probally be keeping my 300CD for a while. Having a job has been helpful in making a few of those repairs that I have been neglecting, which were way cheaper than I expected