User blog comment:WhiteArmor/Anything Espada/@comment-1755153-20100414202216

Highest spiritual power of the espada?

I say there is a strong likelyhood that he's got the most reiatsu, but Yammy didn't show his 0th form reiatsu yet, so we're not really sure, but the comment from Uryu,

saying that it felt like an ocean was above the sky, made it seem like he succeed's even Yammy in that category.