Well, if I had to pick one, I would say the fedora. It can be dressed up or dressed down, and I feel it's easier for most people to work with.
Flat hats are pretty much strictly casual.
Top hats are the opposite, strictly formal.
Bowler hats? Idk, I just don't like them as much.
>>3389197jfc taking things way too seriously, lighten the fuck up mate