User blog comment:Aizen.sama/Are Espadas, Vasto Lorde(s)?/@comment-1769234-20100421233927

Rob 17 it still unknowned if he to any of the Espada were Vasto Lordes. Though my belief is that maybe his Segunda Etapa makes him stronger than Yammy's though Yammy's release form could be stronger the Ulquiorra's first release.