I play on kgs, although I usually go by another name when I'm playing games, as I prefer this one for kibitzing, leaving this account's rank blank. If you care, my other name is chariots (currently 5k), not very different, but kibitzers aren't likely to notice unless they've played me as chariots. I find it makes me a bit more comfortable playing games, as I feel people are judging every statement I make in a kibitz based on my rank. (This is usually reinforced by: LOL, 13k criticizing 3d)
I like to watch Minue622 play most, his play is quite elegant, TheCaptain is fun, because his play is almost diametrically opposed to mine, so I've learned a bunch from him. Other favorites to watch would be Happyguy and Cudgel, both for no particular reason that I can discern right now.