Well, obviously Obito did have to potential to turn pretty kick-ass. I suspect the reason Madara chose Obito in particular is because he saw Obito's fight with kakashi when he was refusing to save Rin. Remember what Obito said to Kakashi before he left?

"You and I always were like water and oil"

Recall that this water and oil saying has been used to describe another event by Tobi. When he was re-capping the what happened at the foundation of Konoha to Sasuke.

"...but the Uchihas and Senju always were like water and oil"

I think this plays a very critical role in the plot, as it has been used on various occasions. I would guess the reason Madara wanted the Senju DNA is because he wanted to mix it with the Uchiha DNA, and thus we see the black and white Zetsu; not mixed together but two seperate pieces, like water and oil. This understanding is what I think Madara wanted in the disciple that would carry forward his will, and thus Obito is chosen.

Well if u remember wat madara said about obito performing a miracle by be alive after the boulder crushed him, he seemed impressed by obitos eye bcus he fazed thru it . If u didnt notice obito still had his right eye it was untouched.

No it was just by chance. it was just serendipitous for madara that the boy he saved ended up being uchiha. Madara didn't even know Obito potential.

I think Madara saved Obito before the cave totally collapsed. I don't think Obito saved himself because his other half was crushed and his other eye he had then given to kakashi.

last time I read the latest chapter,Madara obviously can't go anywhere...Madara never choose Obito...it's coincedentally that Obito almost died near his hide-out...then,he save Obito...

madara said he phased threw the boulder and he knew he was uchia

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