Board Thread:Theories and Speculation/@comment-3001903-20151205022433/@comment-4912646-20151205032955

It seems to be less about strength and more about genetic compatibility, since kid Nagato was obviously a lot weaker than adult Obito. Still strikes me as odd that an Uzumaki — who inherited the sage's "body" power — would be better suited to wield the Rinnegan than an Uchiha — who inherited the sage's "eye" power. Especially an Uchiha with full control over Hashirama's cells.