I've been using Firefox 7 for 24 h (approximately...
) now and it
does feel snappier. Ram management is also slightly better than before. That said, it's too subjective to take seriously and it #!*&!! broke my roboform extension.
(But why isn't that extension compatible?? Like everybody else, SiberSystems had many weeks notice of the release cycle and nightly builds / beta versions to test compatibility.
)
I'm a long time firefox user, and I've always come back to it after seeing how others weren't really better (if any) and in fact slowed down my work flow. I've just experienced a week of Chrome. Same criticism as Firefox (e.g.: Ram through the roof), not any advantages (apart from the fact that turning extensions On/Off doesn't warrant a restart -- but firefox is getting there), and some annoyances (a few missing extensions I really like).
I might try opera for fun next week... Maybe I'll like it better than 6mths/1y ago.