When Tousen finally die try to kill Kenpachi, he noticed that Kenpachi managed to avoid a fatal blow every time as soon as the blade touched him.
Originally Posted by black flash
We can't be sure, but it could also be possible that Kenpachi could pull the same thing off if Tousen would've went for his head with his first blow.
You never know. Just like you don't know if there wouldn't be two Tousen's now, had Kenpachi slashed him with two hands.
There's too much specualation. Was Tousen holding back, did he get a massive power boost since then? There's just no way we can be sure, so most of the time it comes down to who you like better.
Suffice it to say that I like Kenpachi better and thus believe in him.
"For Feanor was made the mightiest in all parts of body and mind, in valour, in endurance, in beauty, in understanding, in skill, in strength and subtlety alike, of all the Children of Illuvatar, and a bright flame was in him"