User blog comment:Bloody Bankai/The Plot and Characters in Bleach ( Spoilers inside, please avoid this post if you do not read the manga as well as watch the anime )/@comment-1454424-20091023071909

Firstly, Orihime has revived someone. She revived Menoly (http://www.onemanga.com/Bleach/274/12/), in fact she healed a significant amount of Loly's injuries too (http://www.onemanga.com/Bleach/274/10/, http://www.onemanga.com/Bleach/274/11/). Both of whom were pretty severly beaten up by Grimmjow, much more so then in the anime. Gimmjow ripped off Loly's legs and Orihime reattached in seconds!

Secondly, Hachi deduced Orihime's power by analysing her reiatsu. Aizen did the same AND he had Ulquoirra's recordings which he appeared have studied for sometime before ordering her to be taken. Moreover, Ulquoirra by his own admission lacks imagination. He can't go beyond what is in front of him. I.e. he is good at deduction but not in abduction. Abduction is necessary for you to leap from one set of facts into another without a clear connection. Neither Aizen nor Hachi are limited in that way.

Plus Shuno said that back in Soul Society Arc, at that time Orihime took ages to heal anyone but she was getting better. It took her hours to reattach Jidanbo's arm and even then it wasn't completely healed. Since then she had gotten powerful enough to heal most injuries in minutes and regenerate arms in seconds. So no, I know what Shuno said in SS arc but that no longer applies because her power development since the beginning of the arrancar arc has been extraordinary. She might not be a god but she is a step closer to being one then Aizen is, who actually wants to be a god.