I am really starting to like the 6.4 hemi rams. If I can only bring myself to buy a chrysler product. In my mind I know they aren't the dodge of years past but something still makes me a little shy. Maybe in 10 years or so when it is time for a new truck I will be warmed up enough to the idea of a ram purchase cause they sure are nice.
For what it is worth as the owner of a 6.0 chevy I can tell you that for a trailer the size of what you are towing that 6.0 will do everything anyone would need it to do. Just set the cruise and steer. I tow heavier and that and it has no problems.