It really depends what you want it to do, and where you want to take it.
I went with the Ram because:
1. I wanted to carry a camper
2. Toyota had nothing in its league
3. Cummins rules
4. I liked it
When I bought the truck, I had access to all the BLM land in the west. Wide open deserts. Big rocks. Big trails. My Ram was purposely built up for that environment and walks over stuff my fully built Tacoma would have had to work harder to drag it's belly through.
Now, I'm in the Midwest. It's not ideal here in thickly forested country unless I stick to forest service/logging roads which is fine by me but may make others feel limited.
That said, if it fits it will go
The fit and finish on the new Rams is pretty damn good. Having owned several new Toyotas though I can tell you that Mopar is an acquired taste. But so is Ford or Nissan or anything else if you're brand loyal.
If it were not for the camper, I would have bought a Power Wagon. They get better every year and are simply best of breed in the full size pickup genre.
It's really up to you but every time I spool up the turbo or hear the diesel exhaust brake kick in this truck puts a big ol' smile on my face. It's an amazingly comfortable long range travel machine.