What about Xanxus, Hibari, Mukuro? Mukurou has illusion, Xanxus has his guns which look impressive IIRC and Hibari...who knows...
If only the Arcobaleno are shown fighting for real...
Xaxnus has some decent feats
Hibari nope, he has no durability/tanking feats, no real strength/striking power feats. doesn't have any real destructive power. and lost most of his hax techniques when his 14 year old form appeared in the future arc. he is only good inverse with Amano cuz lol he cool. on paper he stinks you would have to power scale him off of Ryohei/Yamamato/Gokudera
Mukuro sucks worse. all he has is his illusions and there are ways to fight off illusionist. Mukuro pretty much expended all his energy beating Damon who lost on purpose, couldn't touch any of the funeral wreaths who were worn down by the other guardians(he even had help). needed Chrome's help in defeating that Vindince guy.
but if want to make KHR threads you could pitt them up against HXH, DGM, Fairy Tail, Soul Eater characters.
The wedding is back on, Go here to RSVP Here
PS Chillman isn't allowed to RSVP he has to sit in the back.