I'm @ 60K on my 2014 6.4 Hemi, 3.73 gears and tow an 11K 5th wheel. I'd say the truck is good not great.
While towing - Gear ratios in the tranny are borrowed from the diesel and pretty much suck for this truck. Also, the tranny has some really annoying/stupid shifting behaviors. Most of that can be worked out with manual shifting. The ratios really leave a large gap between first and second. You are often stuck in no man's land trying to go 30-40 up a steep/winding hill. The tranny drops into 2nd but quickly slams back up into 1st.
I know I'm pushing the upper limits of the truck and have the less ideal gears. Even with my complaints it's not like I don't eventually get where I'm going or I just hate the whole experience. It just could be better. If starting from scratch I'd sure be looking long and hard at the Ford 6.2 with 4.30 gears (and presumably a tranny that wasn't designed by an intern).
As a daily driver the truck is near perfect. Also, Ram does give you more for your hard earned money than the competition so it's a tough call. If I towed more frequently, and at the weight I'm towing, there's no way I'd keep this truck.