Im looking to take something to give me a boost pre workout...

I was taking Jacked and i finally ran out, it seemed to help. I'm interested in trying something new...

I see there is AXCEL, CREATINE 500, and results...

I'm not sure if more details regarding what I want helps with this decision, but i want to have more lean muscle. I've been at it hard for 3 months straight, my abs are finally starting to appear THANK GOD! I'm not into the 'MASS' muscle look. any thoughts on AXCEL or the others. thanks!!