What, Waffles, STM, Pedro's, GFT, RevTT, TvT.COM, BMTV, Goem, TehConnection, BitGamer, and 1 I can't mention
Are you on What already? Because although Waffles does have some rarer stuff, the overall torrent count is lower, the community is much less pleasant, mods are very fickle and will ban you for questioning staff decisions, etc. What has the Gazelle codebase which is loaded with awesome features, and I prefer the community as well. Plus you can get in without an invite if you join their IRC channel and queue up for an interview. They ask you about your knowledge of ripping, encoding, file formats, previous bittorrent experience, etc. The server is irc.what-network.net on port 6667 (6697 SSL), and the only channel you should be able to join is #what.cd-invites. You could even get me as an interviewer, though that won't earn you bonus points (plus all interviews are overseen by multiple interviewers anyway).
Oh and don't PM me specifically for invitations to any of the above... I'm not a power user on most of them anyway and other than something like Demonoid I'm hesitant to hand out invites unless I know you well. (On that note anyone who isn't already on Demonoid feel free to ask).