Animal Rage - Felt like it gave me pretty good focus, definitely zoned out during my workouts and didn't crash afterwards. Although I never really crash.
Real Gains by Universal - Freakin' delicious. And doesn't make me feel full, which I think is important for a weight gainer because I'm still hungry after drinking this.
I ran the Animal Test, M-stak, and Stak stack earlier this year with pretty decent results. Will probably run it again when I am able to lift like a normal person again.
AmiNO Energy by ON - blah product didn't feel like it made much of a difference. Much prefer drinking Purple Wraath during my workouts if I am drinking anything.