[ZGoten]

The comparison of Madara and Tsunade is not flawed at all. Both can use others to fight for them. It's that simple.

Anyway, if you count Madara's ability to control the bijuus as his own power, we are entering difficult realms again. It's a similar situation with Kabuto and his zombies. In my opinion, it doesn't contribute, but I can see how one could think otherwise. Madara would need bijuus to make use out of that ability. If there'd be none for him to conquer, that one power would be entirely pointless. The latest manga chapter hinted at that very scenario as a possible one. Well, we'll see how well he does when he finally steps in the limelight himself, soon.