I'm active on 3 forums, but belong to oh.... I wouldn't be able to count them all!
Out of all the ones I've joined, I find BB to be the best... lots of people, lots of advice and stories and most important of all..... *PICTURES*!!!!!
I have yet to find one I like more than BB! But then again, BB is the most active forum I am on, and I wouldn't want to join one as active or nearly as active as BB 'cause that'd mean less BB time!