Long trips, involving a lot of highway driving...5th wheel is the way to go. They do NOT buck or wiggle as much as a TT. It is a better way for the trailer to become "one with the truck". They also have a large basement for all that "camping gear" you mention.
Short weekend, occassional week trips...get the trailer with the floor plan you like. If you stay at about 80% of your trucks towing/payload capicity, then add WDH/Anti-sway, you will not be disappointed.
I think people insist on 5ers when they push the envelope on the weight issue. You can get away with going heavier with a 5er more safely then with a TT.