Obito looks nasty in that picture.
of courseWhat that supposed to mean? he took back his eye from a dead kakashi???!?
Wow... killed my high.
At this point his other eye would be better but, the Rinnegan also has huge advantages. Revival and it's given techniques is much more versatile than MS but with both the Sharingan eyes are much more powerful rather than just having one, which has been said in the manga. You also forgot Sasuke was recovering for a while from his transplant which would also apply to Obito.

None of you saw Kakashi's chidori peircing Obito as well? I think they killed eachother.