madara can use rinnegan and ems but, trying to compare his level of rinnegan usage to that of tobi and nagato is absolutely insane, now if he could use the rinnegan as good as he could use his ems than he would be impossible to beat, but back on topic, of course tobi, seems to be better with the rinnegan right? because of his six paths, but what people fail to realize that tobi's six path consist of edo jins, with both shar/rinn, plus tailed beast empowering them,not to mention a kage was among them as well, while nagato just had regular dead bodies (that didn't have anything special besides the rinnegan abilities nagato gave them) to fight at his disposal(despite nagatos being much, much weaker than tobi's in power) but nagato being the militant, strategist, and tactician that is he was still able decimate a whole village , while tobi only rely's on his raw power without much strategy , so if its a question whos better than nagato, but is a question of whos stronger than without a doubt tobi's.