Rand Paul is the guy I like. He supports gay marriage on the grounds of human rights, wants reform of tax code, drug laws, to avoid war with CIA (and therefore decrease military spending), improve internet privacy & decrease gov't surveillance, etc.
Jeb Bush also supports same love marriage. He's the other republican I'd be aight with.
Anyway, I think the most notable moment from the debate was Paul and Christie's debate over government surveillance. Basically, Rand Paul was like, you can't just monitor all American's stuff and invade their privacy and ignore their 4th amendment rights just to make sure that they aren't terrorists. Chris Christie essentially replied that he won't apologize for ignoring people's constitutional rights if terrorists are being shut down, and later stated that he has "no respect" for the position that Americans have any right to privacy.