I recently just switched from firefox to google chrome..... wow. I feel like it's christmas. So much quicker and a lot less bs. You can also customize it a lot to your liking. I had to switch because firefox was causing a lot of crashed when it was using flash and it was slowing my whole computer down on the whole.
i've been faithfully using Opera since....a long time lol. i fully believe that if the name Opera was changed to something as trendy sounding as Firefox, it would be more popular. people seem to jump on the bandwagon, but anything is better than IE.
mouse gestures and speed dial are excellent features. i don't do addons, toolbars (aside from the google one it comes with), or anything that clogs up my screen. url bar and tabs, that's it. there are rare times when it has issues with some new crap on media heavy websites but it's so rare that i just use IE momentarily if it ever happens. works just fine for 99.9% of sites i go to, which is a lot of sites.