The Next Nemesis

Last weekend I had the opportunity to go see the latest Star Trek incarnation at the theater, and after a few months release, I must say the crowds have thinned since I first saw the film opening weekend.
As such, as I watched the film, I began to think about the next film in the franchise. Since in the new universe almost anything can happen, I wondered who would make a good nemesis for Captain Kirk and crew in the third instalment of the Abramsverse version of Star Trek. Giving it some thought, I came up with a few. But if you have your own thoughts on the matter, please share. Would you rather see an established nemesis or a brand new one? For the list, head to the forums and vote for who you would like to see Captain Kirk and crew have to deal with in the next movie and by all means, tell us why.