Well, that's the problem.
I don't know that there could be a single best UT player, since there are so many different games within UT.
I'm good at Dom, but not as good at DM. I'm good at defense in CTF, but not as good at offense (probably because I'm not as good at negotiating through the maps while running backwards with a RL).
That's what's going to be interesting about Bungie's Halo....the idea that there will be specialists in a more-specific manner than you have with UT and certain players that excel at a particular thing will be in high demand for units (as we have with clans, but I think it will be even more specific).
I think you can probably use Worldstats as a relative indicator of ability...with MANY shortcomings, of course, but it's still a good guide. I guess around here, Voyd is good at DM, DragonAsh and Rooster at CTF, Troll at TDM, hmmmm, I don't know DOM...but............................gotta go...lunchtime....
-Scott
[MUTTS] Das