What about 3rd place? Primecoin, Anoncoin, Feathercoin?
3rd place appears to be up for grabs. I've heard good and bad things about each of those mentioned. I think BTC/LTC is too far ahead to lose at this point in time.
At the moment Peercoin appears to have a slight lead over the others IMO (due to market cap of 10x the next competitor - Namecoin -
http://en.wikipedia.org/wiki/List_of_cryptocurrencies).
I must admit that Anoncoin seems interesting and could be a dark horse if it's claims hold up in the long term (it could end up being a subversive black market currency). Using the anonymous icon for marketing is a bit much though, and it could find itself under attack for that!
If too many survive then we could end up with a FOREX type scramble based on pure speculation creating a massive bubble followed by an almighty crash where only 2-3 survivors emerge unscathed.
But anyways, even this post is just pure speculation!
Exciting times indeed!