I have been enjoying force master. But I play magey classes in any mmo I play so I may be a little bias. x_x
I like Lyns, I'm just not good at designing them. There have been some really nice ones in this thread so far, though!
I wanted to be a Summoner more than any other class, but I don't want to play a Lyn. =[
I'm really excited about Warlock. I like Jin's the most, but I didn't want to play any of their classes. So Warlock will be really nice when it releases.