My 'short list was down to F150, Tundra and Ram2500(6spd manual) Now that I'm in the Tundra, I think the F150 might be a little tougher, but I strongly dislike the tranny. I was really impressed with Ram2500(diesel/6spd): very pleasant/ decent pedigree, but there are a few teething issues with the emission equipment. If you need tough sheet metal, you're running out of time...thin is in...Toyota's $$ incentives swung the deal for me. If it turns-out bad, I'll trade-in on a 3/4 ton Kia
happy hunting