Hashirama rivals VOTE Madara,because hes the rival of madara, a juubi jin. this makes obito a redundant 3rd wheel in terms of stature.
and Kishi agrees w/ me, since he didn't bother giving obito susano'o sublot, or a rival that approaches his own level
because the list calls for ten shinobi
Juubi Jins are out of his league, hell he even admitted inferiority to mindless Juubito,
he stands no chance against him