User blog comment:Sosuke Aizen008/Who is the most powerful in stern ritters?/@comment-5657895-20130924160306

I'd say Jugram, Old Man With Glasses, Nodt, and BG9 are the most powerful seen thus far.

I have a theory that the A, B, C, D, E, F Stern Ritters are the strongest.

Loyd Royd (Memory copy) was pretty strong. Strong enough to best Kenpachi when even his brother (Who can copy powers) couldn't. And he did it easily as well.