Board Thread:Naruto Discussions/@comment-28861328-20140618060932/@comment-7862945-20140627075354

Actually, it wasn't exactly the Uchiha being inferior to the Senju but Madara being inferior to Hashirama.... the clans over all were about equal. If one guy got the Senju, the other side would hire the Uchiha....

It should also be noticed that Madara and his brother Izuna at some point started to go blind, so the Uchiha was being led by blind guys...

Over all, the clans themselves were probably equal, it was the leaders that made the real difference....