I think my favourite class is Assassin, actually. Charge-up/Finishing skills make things a little more interesting.

Plus, if a claw-class weapon drops, there aren't many people who'll nab it before you. ;)

I honestly haven't enjoyed Sorceress as much as the other classes, though... but I haven't played very much as one. I suppose it's probably better at higher levels. But melee combat is more invigorating, and more fun, and I would never have made a melee sorc on my own. ;)