Lets start with the basics, what kind of use will the truck see? Is it going to be a work truck that will see lots of miles? Will it be a commuter truck that occasionally hauls a load of mulch?

My point in asking is that there a lot of people who want a diesel but not many who need one.

That said, Daytona is right, we need much more info to help determine which may be a good fit. Also Grizzly is right that you want one that hasn't been hotrodded to death.