Toyota Hands-down.

But if you decide to go diesel, the Yota isn't an option yet and it goes Dodge, Ford, GMC in that order. Actually the new Ford Powerstroke 6.4's are sorta untested so I might hold off. I have a '06 F-250 and I've really put it to the test and have had zero problems at all except a tail light that burnt out, but that was made by Sylvania.