Bruin,
I've had both travel trailers and 5th wheels. The fiver is the more stable tow. Less sway and wind rattle. My fiver is a 36' double slide that weighs upwards of 11k. My F350 pulls it without a problem. The only problem I've ever experienced is from bucking and that has only happened on very rough, washboard type roads.
Hooking up is very easy and much quicker for me. As far as parking, there is no compasrison.
