Quake Live
Make no mistake, this is how games should be. It is fast, brutal, balanced and ludicrously fun. The new menu system makes it ridiculously easy to find a game, and as you can spawn with a couple of non-useless weapons, you can get straight into the meat of the game.
However, just a few weeks ago they changed the announcer voice, I think using the same voice actor as UT's announcer, who is notoriously patchy (most people couldn't believe UT1 and UT2003 had the same voice actor). When you kill someone with a gauntlet, it sounds like he wants to molest you.