Megumi Fushiguro is a summon specialist but a key difference between him and Kankuro is that he’s also highly proficient in hand to hand combat. True, Kankuro’s puppets aren’t exactly summons but it’s close enough where I would still count them. The problem for Kankuro is that he would physically get demolished even if his puppets could hold their own for a while. Megumi Fushiguro wins.