I think we also can agree that most MMO players are on the tech/geeky side.
Thus, Android's consumer base is particularly well-suited to support a MMO.
Regardless, if I have to read one more article about what mobile OS is better, I'm going to lose my mind. Who cares? Unless you own a few thousand shares in any of these companies, you shouldn't. When I see these, I immediately picture two fat people arguing whether Popeye's or KFC is better.