Board Thread:Questions and Answers/@comment-10922879-20130617143901/@comment-27392440-20160407232951

Ulqiorra probably was the strongest considering he was a generalist in terms of his powers so there weren't any vulnerabilities that could be exploited and he had segunda etapa. In terms of sheer power and combat skill it's clear Starrk/Lilynette out do everyone though their focus on ceros left them with a weaker hierro and sonido, which greatly costs them in being the strongest. Barragan doesn't seem that strong compared to the others when you account for him seeming to not be fast in his ressurreccion plus when you consider that with such a powerful ability his release and energy reserves will probably run out if you can drag the fight out, unlike the others. Zommari may even count on this list if you assume his power can affect someone stronger than he is (imagine if he used it on Barragan, since with amour there doesn't seem to be anything that can age before hitting him)