I had gooseneck trailer, same things as 5th for this discussion.
There is always the chance the trailer contacts the bedrail of the truck and does thousands in damage. A tt will never do this.
A 5th does tow better, is safer to tow and gives you more camper for the same rig (truck/trailer) length, but
if you just take a few hours drive sometimes each year then "towability" is a low low concern, all tt's should be a fine tow esp with WD hitch helping.
A tt will resell easier, and if you somehow end up with another tow vehicle then a tt can be towed by far more vehicles. 5th has to have a special expensive hitch installed which most trucks do not have, and NO suv's or car will have.
If you have a breakdown on the road and have to be towed then a tt is much easier. Getting a 5th towed… I cant imagine. Your GS or AAA coverage might have "RV" coverage which covers towing both truck and trailer, but good luck finding a tow truck that has a 5th hitch.
Or if your buddy come to rescue you and tow your trailer, then he will have a trailer hitch, but who has 5th hitches????
just a thought