I know there are a bunch of others, but these are the ones that come to mind offhand. I'll check with Brandon, our staff guy that handles our tube marketing and see if there are others he likes.

I've heard that Redtube is performing well (and has sizeable gay traffic.)

I know some people that are doing well with Pornotube (AEBN's property) but we've had a lot of problems with things being broken when we've tried to upload stuff to it.

And Xtube, if you don't mind the terms of the marketing agreement you have to sign, can be good. We didn't agree with their new terms, so we are no longer marketing there, but I know others who are still doing ok with it.