Google Chrome is the browser for me.
I was a big time Firefox user (and it is still a very close second behind Chrome). But nowadays I'm a simpler person, and all a simple person wants to do is get on the 'Net and browse...and browse quickly!
Chrome starts up quickly and is blazingly faster than any of the other browsers. I use the Adblock extension, and that's all I need.
Tony, did you select Firefox? If you did, you didn't say why you prefer it.