I use:
Chrome
Opera
Maxthon
Firefox
Seamonkey(Mozilla)
Chrome is great but I totally HATE the completely IDIOTIC tab structure - more tabs=smaller tabs. I hate that.
I know, it's part of an intent to keep all tabs on sight but we should get an option through which we could choose whether we want the Firefox-style tab structure or the Chrome one. I personally open a lot of tabs(that's why I even use various browsers as you may have alreayd noticed - I split my workload and the stuff I work on depending on the browsers - project A=Chrome, project B=FF,project C=Seamonkey...etc.)
My favorite?
FIREFOX - because it's smarter than Chrome when it comes to managing tabs.