from what i've heard is that opera is kick ass awesome, but i've prefered firefox for now. IE sux balls. only cause its backed my MS. if microsoft provided speedy updates and updates without some severe security risk happened, i'd probably feel better using their browser. here's an idea for MS, stick with operating systems let everyone else handle the other programs out there.
mozilla has really good updates for their browser and keeps it up to date. much faster than MS. they somehow make money at it and it doesn't cost a thing.