User blog comment:Stark373/Was Ulquiorra the most powerfull Espada?/@comment-1677140-20091201215904

I'm just gonna say this. It's possible that the numbers on the Espada were misleading, Aizen seems to know just about everything that is going on, and he left Ulquiorra behind where Ichigo was. I like to think that Aizen knows that Ichigo is some kind of threat, Ulquiorra is the strongest, and he was left in Hueco Mundo just for that reason. After all, the supposed top three Espada are all huge disappointments, and Mr. Cifer was a dome blasting bad ass. Ulquiorra said he was the only Espada who had a second release, let's just go with that being true.