@5th: Those girls have not shown enough power to even put them up at captain level. Candice isn't as fast as someone like Soifon or even something on Soifon's bankai, the zombie girl has no DC what so ever. the loli with the big mouth can beat weak soul reapers, but she hasn't shown anything that puts her on captain level.
And the power girl at most is maybe as strong as Tsunade, but still that all that impressive.
Yeah the guy pulverized a damn meteor, but he still took heavy damage from an imaginary space-manipulation attack and he hasn't been shown to resist time manipulation.
Then there is the fact that by using the first bullet, Kurumi can jump to high speed levels and she can always shift from one plain to the void in an instant before Zaraki can hit her.
Then there is the city of devouring time, which can constantly drain him. also after freezing him in time she and her clones can drop 20 or city level space-quakes on his head. and unless he shows feats in the manga, he isn't getting out of a 4 dimension ability.
EVERY STERN RITTER IS AT LEAST CAPTAIN LEVEL, THAT'S SOMETHING THAT'S CONSTANTLY SUPPORTED BY THE UBER RIDICULOUSNESS OF THEIR POWER
The four seem to be fighting equally with Shikai Ichigo, enough to make him use his new Shikai and abilities, if that isn't Captain level then I do not know what is.
Yeah except all four of the girls trashed several city blocks of buildings with their Holy Arrows
Incapacitated a wounded Kenpachi (Which I might add, is pretty damn impressive.)
And are currently fighting a newly improved Ichigo who's ACTUALLY trying albeit with minimum effort
All of Gremmy attacks were concentrated, that's how Kenpachi got damaged, and what makes you think he won't destroy the bullets and her clones within one sweep? His sword should cover a decent range considering the power it used to destroy the meteor.
Captains back at the Aizen Arc are fodder to their current selves, hell, Cang Du and BG9 were at least above Captain Level and lost only to PIS.
It's not surprising that the Fem Ritters are powerful as Captaons