I've tried, literally, every browser out there..and everytime there's a major revision to an established browser I download it and try it. I keep coming back to the stock browser; it's fast, easy to use, and just works. It doesn't FC, it doesn't lag, and it does what it's supposed too.
When a solid, stable, version of Firefox is released I'll give that one a go because Im a devout FF user but until then, stock works great for me.