Last campaign(s) I played were Talislanta. I voted "other."
Last campaign I ran was a proto-d20 homebrew, though I'm thinking about switching to 3.5e... Biggest reasons I haven't switched are:
(a) can't see a reason to pay money for the privilege of sitting in my dining room with friends and telling imaginative stories, which we do for free now, and
(b) the rest of my group (bar one) probably doesn't even know there was a 3rd edition, let alone 3.5 (and if they have no interest in learning a bunch of new rules, why should I?).
;-)
ironregime