Didn't see this thread. I'm Brute. I've been playing DOA ever since DOA2 came out for the Dreamcast.
I main Hayabusa, Ayane, Kasumi and Leon, though I'm probably "best" (can win most easily) as Hayate.
Have the collector's edition pre-ordered for the PS3, and am slaving through everyday till DOA5 is released. I've been playing the demo endlessly.
I guess I'd say I'm mid-tier. Not one of the greatest as I play horribly with lag, and a lot of the jargon is unknown to me. However, I do play a lot with all the characters (some more than others) and have a pretty good feel for how to play (usually get 3 wins to every loss against the AI on the hardest difficulty in Versus).