Board Thread:Versus Debates/@comment-26388300-20150708194704/@comment-5273810-20150721155230

Something everyone seems to be forgetting. Obito also has knowledge on Nagato and even with full knowledge on Kamui its still hard to deal with unless you have one as well. Powerful opponents like Minato had to gamble in order to win.

Plus something else everyone seems to be forgetting. Konan who knew everything there was to know about Kamui(something Minato didn't though he did figure out the technique's basic mechanics) still lost because she didn't know about Izanagi. Now if Konan and Nagato shared info on Obito(which they were bound to have) Nagato would not know about Kamui and so when his guard is down Obito would finish him off.

To be honest I don't see how Obito couldn't win.