If you just want to pass your Gen Eds, you could choose gen eds that interest you.
But if you want to kill em, do those that are relatively easy to gain marks in, and low contact hours unofficially. Hint, look at our BoS Gen Ed Faq. You usually hear rumours from other students on which ones to do and not to do.
I heard by 2008, new Gen Eds that are 6 UOC will be implemented. And no more new 3 UOC Gen Eds will be made.