GNC is the worst. Their prices are way marked up and their selection is horrible. I agree that BN is the best online supplement store (or at least one of them) and almost any supplement store online will have alot better prices than GNC.

If you just want a basic creatine you can get any brand of micronized creatine to add in to your PWO shake which is pretty cheap. Otherwise just browse the user reviews on BN in the creatine section and you can get a good idea of which designer creatine is best for you.