User blog comment:Aizen.sama/Are Espadas, Vasto Lorde(s)?/@comment-1248963-20100420012401

The shadow that was seen when we first heard of Vasto Lordes had horns and a hollow hole, so yeah, mask and Hollow hole, but very human-shaped, not much else do we know about their looks. We know that they're stronger than the average captain, but we don't know how strong the average captain is. Toshiro? Komamura? Tosen? Kurotsuchi? Soifon, maybe? I'd place all the others above the average, honestly, and Toshiro will keep growing with experience. So Vasto Lordes are a mistery, and... Bleach fandom has gone over and over this topic a zillion times. I doubt there's much more to say on it