I have recently had a discussion with some friends that work out as well, and despite all of us being sold on using creatine, we disagree as to why it is a good supp.
I have given the reason that it gives energy and thus will help you get mabey an extra rep or two on a hard set, mentioned that when I take 10 grams of it, i'll get that amped feeling. I say that if you can force more work out of a muscle, you'd help it grow faster.
They mention the reason why is because it draws water into the muscles which sounds like a pretty useless reason to be taking something unless you like dehydrating your tendons and ligaments, etc. They also are completely oblivious to anything that creatine does to increase energy, saying that they've never heard about that.
So, who is right?