As a tank... and this is going to sound weird, but my two favorite fights are the first two bosses of AK. I know, even 300 runs later they are still fun to me, particularly the first boss. Just dodging, losing, grabbing while grabbing up adds and dding as a tank to my fullest, is fun but not too hard. And dancing at the Demon Wall, yep, its still fun. We need a boss rush SE!