i've yet to go into the GH world, but i've always heard that rips is one of the top quality. the one thing i do know though is above being concerned about which one is the best, is to be concerned about the source your getting them from. the GH market is so bunk because the profit margins are so much higher than AAS and you can fake GH really easy as well. a lot of people will just put HCG in them cause it's easy to confuse the two when you look at them. there are some DIY tests that will help differentiate if it's real or not.
so to answer your question, i've heard rips is phenom. but just be more concerned about the reputation and reliability of the source.