Tequila brings back bad memories of doing slammers with some chicks and singing Bohemian Rhapsody (seriously, who knows the words? I think the only person who does is dead from being a homosexual and was a frontman for Queen).
Vodka is pure weakness in a bottle. If you want to drink something tasteless, drink water. If you want to get hammered, do it in style and do something else.
My spirit of choice these days is line-ball between bourbon and scotch. Both go down well when mixed or straight, and both lead to hilarious events like attempting to play wingman and unwittingly stealing the flight leader's target, chatting up random chicks and not being able to remember their name - effectively ruining all chances of progression, and just general drunken antics.
Also, beer is very underrated. Its cheaper than everything else here. Cheaper drinks means the night will go further. I'm more of a fan of long drinking sessions then drinking 10 shots in a row early on. That's just not as fun because you'll probably end up bringing it all back up later on.