I use Opera on my troutty netbook, because I thought it might be a little faster than Firefox. It isn't, but I still use it because it has all my things on it. When on a functioning computer, however, I use Firefox because it is jolly good. I once tried Chrome, but didn't really like it, though I have been thinking of returning for a second try.
Tell me yours, and let battle commence! The winner shall take home glory, and the loser shall be removed from all computers forever*!
*I'm joking, but it would be nice to get rid of IE once and for all.