User blog comment:The Koromo/Crossover Battles We'd Like to See but Will Never Happen Outside of Fanon/@comment-3125914-20121231145100

Roronoa Zoro vs Kanda Yuu (D.gray-man)

Portgas D. Ace vs Ogami Rei (Code:Breaker)

Kizaru vs Heike (Code: Breaker)

Akainu vs Xanxus (Katekyo Hitman Reborn)

Dracule Mihawk vs Superbi Squalo (Katekyou Hitman Reborn)

Usopp vs Okumura Yukio (Ao no Exorcist)