I use Firefox (2.0.0.1) mostly cause I’m on a land line…so for me pages load up 10x’s faster with FF. Right now my connection speed is 44k but usually it’s 32-37k
Also with FF I can block images/flash bullshit/advertisements etc. Sometimes I use IE7 for certain sites it’s OK an improvement for sure it’s just slow for me. Now I’ve used IE7 in an office environment with a LAN or T1 line and it’s really sweet. Another thing, I don’t get anymore worms, viruses etc. using FF.