Whew boy I've done a lot of these. I like the desakyl/diaz family for actually managing my GAD. They last so long it gets tricky if you try to have any fun though. It's hard to beat the etis for a good time. Pynazolam is really fun but haven't had much experience with it. Pyrazolam is also to nice to have in your collection. You can use it to get a bigger bang for your buck on anything else but is really bad when it comes to thinking your sober when you're not.
I guess I'd need a more specific question for a more specific answer