So we've been shown the faces of all 10 espada. But now the question is who is #1? My guess is that its Stark. Because well the quiet ones are always the ones who are strongest. Here is my list of the 10 Espada in rankings:
3. Big buff black guy
7. Old Man
Reason I put Buff Black dude as #3 is because he seems to be calm and not afraid of anything maybe hint of his strenght? And as for Noitora I put him as #5 because even though he's strong ulquiorra called him a "damn fool" and I don't think Ulquiorra would call someone stronger than him a fool. And as for the Old Man, he's always belittling Ichigo's group and people who belittle their enemies are always the one's whos weak.
Okay your thoughts on this