I have an F350 CC long bed used to tow a 35' 5er. It is long. Parking can be a problem in some parking lots when the spaces are narrow and straight in rather than angled, or the lanes are narrow. And it can be an issue in some tight corners.
BUT. There are never any concerns about the 5er hitting the cab in tight back in turns. (Friend knocked out his back window with his 5er and short bed) And I love having the extra bed space in front of and behind the hitch for "stuff". In addition, I sometimes haul some 8' lumber or plywood or other items that are too long to lay flat in a short bed.