whewt did you just imply I shouldn't have Isshin on my list ? Because he's on yours as well
and no I do not think that is the case, Isshin is suposedly a member of the royal guard. If he isn't, I'd take him off my list
Ryuken on the other hand is a master of Quincy combat, I don't think the levels between Shinigami ability and Quincy are comparable
even if you mastered a form of combat, if someone else mastered a stonger one they are likely to be stronger
I guess if i'm gonna put Isshin on my list though I should also include WW as well since all evidence leads to him being a vasto
edit: oh and whewt your arguying Mayuri and Soi fon to be above Urahara, But I don't even see them on your list...why ?