It is simply a matter of preference, what suits you best. Pros and cons for both depending on how much towing, does it need to fit in a garage, is it a daily driver etc.
My short bed works great for me. I drive daily for work, and it fits nicely in my garage. Long bed wouldn't work for me. Plus you lose a couple hundred pounds of payload.
I have a slider hitch and have never (6 yrs) needed to use hitch in maneuver position.
If I was full time towing, I wouldn't need to worry abt garage and would have much more needed room in bed.
I also have a toolbox in front of bed and all fits no problem.
