I installed Chrome on my phone and my tablet when it got ICS. Mostly because people say "ooooh, with ICS you can run Chrome". But I really don't see the point, it is only mildly different than the stock browser, and it doesn't do flash.
The Firefox beta is pretty good, I like it has extensions like "phony" and ad blockers. The v14 beta (phones) has Flash, but the tab bar never hides and no ad block extensions work. The v13 beta has ad block, but no Flash.
So mostly the stock browser is good enough. I like seeing desktop sites, and I don't like seeing ads. That's about all I need/want from a browser. On my iPad, Atomic Web Browser does both for $0.99. I'd pay that for a similar browser on Android if there were one.