This one was definitely a bit tricky. Choji’s not the fastest fighter on the block, but he has some pretty immense power. A good strike could take most of the fight out of Ben 10. Ben 10 has some pretty decent speed on his side as well. I think Choji’s overwhelming power will give him the slight edge in this round. Choji wins.
Update 10/25/2022 Ben 10 has enough speed and attack feats where I would give him the edge now. Choji will not be able to keep up with him to really make use of the chakra moves. Ben 10 wins.