Ok, well, I've played Civ5 now and I'm quite disappointed to be honest.
Don't even know if I fancy hosting a pitboss of this if I don't like to play it myself anyway. Then again, I understood it's getting more fun with the expansion (Gods & Whatever), but then I'd have to spend even more money on it.
So...unless someone has an awesome sales story for the expansion, I much prefer to host Civ4.