IMHO, no matter how fast a browser is, it's not an option if it
And about that speed thingy, really... if your round-trip time to the webserver is 500ms, then 2ms difference in page rendering time won't really matter.
- doesn't make believable attempts to support standards (or introduces new, non-standards-compliant methods)
- doesn't have lots and lots of useful add-ons available
- doesn't run on Linux (IE... :P)
And about that speed thingy, really... if your round-trip time to the webserver is 500ms, then 2ms difference in page rendering time won't really matter.