I much prefer surfing the internet with a keyboard, mouse, and dual monitors. I almost always use FireFox.
On my Tablet, for very light surfing, ie use IE or FireFox. I would say IE is superior for Tablet PC web surfing.
I like having two browsers going, if one gets tired, I just fire up the other one. Firefox is such an easy download, I don't mind installing it. Plus I love Foxmarks and the Awesome Bar !
Firefox 3 Video Tour: The Awesome Awesome Bar