Theories

[TwisT]

I would say 5 at the most. But if we go by coolness or looks, Grimmjow feels stronger and he's nr6 right? So i would think he's nr7.

The old guy just looks and feels like Nr1. At the very least he's nr2.

The female Arrancar seem stronger then Grimmjow the way se acted in the Grimmjow fight so that would make her 2,3 or 5. I just can't see her as nr1. I would guess for 2 or 3 because i think the black guy is nr5

The loli guy seems like nr1-3. He's the only one i could see that would be nr1 if the old guy turns up to not be the one.

What was most surprising was when it was reviled that Ulquiorra was nr4. Before that i though he would have been nr 1 or 2.