Look at speed, ease of use and aesthetics.
My speed tests using BT Infinity
Firefox:
Chrome

Safari

Couldn't test IE as I use a Mac.
Firefox and Chrome seem the fastest, which would add up being as Chrome is super-duper-lightweight and Firefox has won the Web Browser Grand Prix many times.
Though the site http
/speedtest.net/ seems to only grade Firefox an A, this may be because of traffic at the time.
Meh, let's see what you think.
My speed tests using BT Infinity
Firefox:

Chrome

Safari

Couldn't test IE as I use a Mac.
Firefox and Chrome seem the fastest, which would add up being as Chrome is super-duper-lightweight and Firefox has won the Web Browser Grand Prix many times.
Though the site http

Meh, let's see what you think.