I prefer Opera, using in both Linux & Windoze. I also used Links - a Linux text based browser - when in a shell. I put Opera on PCs at work too. I'm trying to convince the boss to avoid IE because of the security issues with it but it's hard going.
Tried to explain that the nice interoperability & root privileges between IE/Windoze/Office/everything else are part of the reason for the network's woes. Even after a number of virus/adware/spyware infections & machines that crawl he's wedded to WinXP & IE.
Wish I could convince him to dump M$. There's only one or two bits of software we use that's Windows specific. Even then there's Linux equivalents that I think would suffice.