It looks like most of you have/use fast machines. 867 MHz G4 here and the most viable solutions are (in order of preference) Camino and Safari. Camino is just lightweight and you can turn animations off. It also feels noticeably faster than Safari on older machines.
I try occasionally the other browsers too, mostly when I check for their updated versions, just for a spin. But on an old G4, browsers like Firefox and Omniweb seem rather bloated and slow (though Firefox is speedy in rendering, but this benefit gets lost in how it generally feels).
Now to support further my theory about browsers on older machines, I ran (don't laugh

) both Camino and Firefox on an old black Powerbook G3. Needless to say that Camino won hands down. Firefox is downright painful on this machine.