Shunsui's Katen Kyōkotsu
Yumichika's Ruri'iro Kujaku
Yamamoto's Ryūjin Jakka
Kazeshini is looking kinda good though Hisagi doesn't like it i sure do
Shinji Hirako's Sakanade. Although there are some other pretty hax and powerful Zanpakutou up here. Sakanade's usefulness in battle has yet to be peaked.
yamamoto's,since he is the strongest!
Ryujin Jakka. The epicness of a bankai for the price of a shikai. Overkills are awesome.