Winrate in Japan, from 256 tournaments. In order it's BG Zeon, GW Wing, BR ping, BW Unicorn, and then some random SEED decks.

Compared to a month ago, their new tier list is
>S tier: BG Zeon (up from C tier)
>A tier: GW Wing (down from S), RB ping (up from C)
>B tier: BW Unicorn (down from S)
>C tier: RG Zeon (down from S), BW Seed (down from B), and RW Seed (new)