Depends on what yout want/prefer.
I always liked the smaller trucks, but even the crew cabs can't really sit 5+ comfortably and the modern full size get pretty much the same gas milage. With gas prices now you can get a brand new truck for the price of a used one, I just bought a 1 year old off lease in Feb and could have waited until now and got a brand new for less <img src="/images/graemlins/frown.gif" alt="" />