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the only reason i and alot of people dont believe its obito is because he doesnt act like obito. who is all about being loyal to his friends which obviously he is not. as in if obito is tobi y the hell would he let pain kill kakashi.

This is gonna sound highly unlikly but what if tobi is madara just another form like perhaps madara used some unknown jutsu to transfer his mind into another body. thus leaving him with a new body then he went and transfered his sharingan to the new body. so then why kabuto used edo tensai there were two madaras.

Ok and to go on the whole obito thing further, obito could have been edo tensaied then he would have both sharingan because itachi was edo tensaied and had both sharingan.

But im not really up to date on the manga anymore

lol i think tobi is obito for the fact he has one eye and hes always been with zengetsu, who as we all know can heal everything with his god like powers.

my examples as to why i believe this is kakashi sharigan has mangekyo and like the fake madara it has time and space attributes with makes me further believe in obito.

and as final proof we all know the only way to achieve mangekyo is to kill your best friend so where is rin kakashis child hood friend why does he talk like shes already dead.

believe what you want but i think its obito and soon all will be revealed in the manga so get ready people (;