I only ever use the Huntsman on sniper. It's so rewarding!
The day the Strange Huntsman comes out, I'll be first in line to get one.
Sniper isn't one of the classes I really use alot though.
I used to play spy quite a bit, but then got sick of seeing Saharan spies left and right.. I was no longer an individual LOL.
Then by the time I got back to vanilla spying, I was bored of it.
Pyro is fun. I love reflect kills more-so than anything else in TF2. Practicing flare gun kills atm. I know the shotgun is better.. but meh.
Demoman is a class I main.. but I've gotten sick of it.
Scout feels very rewarding when you play it properly. I love the feeling of flanking and harassing a team.
Medic is current my fave class.. just hit 800 kills on my strange Ubersaw today. 111 kills on my crusader's crossbow now I think atm.
People tend to love me as medic because I gain ubers so quickly and don't pocket like a little biatch. LOL
Soldier.. only non-default I'll use is the equalizer (why wouldn't you).
Engineer is my most disliked class.
Heavy is meh.. I just play it when I'm lazy.
I'm really poor.. but if you wana see my bp:
http://www.tf2items.com/id/denan31