Never played a fighter before. Can't say anything about that X3
Clerics are fun at first, and at around level 20 they got so goddamn BORING. Probably because I built my cleric to be a solo/tanker, so it was pissing me off to grind all the time and it took just FOREVER to kill one thing. This time I know to go party >.>
Mages look cool. I <3 their shiny skills~ 8D I tried playing one before and talked with my friends about it, and they all said that mages aren't great if you don't get into a good party. Cooldown is long, low hp, bad defense, hard soloing, but in PvP they look pretty darn awesome.
Archers are still my favourite, probably because it's harder than some of the other classes when you're at relatively lower levels (1x, 2x, 3x). My archer's only a 2x right now so I can't say much about higher levels, but I hear that archers go from almost useless to a pain in the ass for monsters. LOL So that's why I'm sticking with archers. >.>