"Each of the Espada holds dominion over a different form of death. The ten different paths that can lead a human to death. This is reflected in their individual abilities, their ideologies, and forms the basis of their existence." -Barragan Louisenbairn, Espada Dos

These guys are some of the greatest villains ever known to anime. Sure, the NGE Angels aren't that bad. Griffith is not all that bad, either. Don't even get me started on Bondrewd, because that guy has his own special ring of Hell, just for him. Neither DIO nor Father Pucci nor Kars were bad villains, either. But the Espada? These guys have their own ranking 'n' shit.

BTW, my favorite has to either be Ulquiorra (yes I'm based asf), Grimmjow, Nnoitra, or Baraggan. I like Ulquiorra because he's the only Espada with a third stage (Yes I know Yammy also has a third stage, but it's not technically a "Stage", he just gets bigger). I like Grimmjow because the dude just doesn't quit. I like Nnoitra because of his character design and his cool abilities. I like Baraggan because over his Hollow character design. His design is cool, either way.

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Source: https://bleach.fandom.com/wiki

For context, so you understand, this is around the time Aizen was in power, and around the same time the Fake Karakura Town mini-Arc happened.

Update: I added Nel

Espada Uno: Coyote Starrk

Espada Dos: Baraggan Louisenbairn

Espada Tres: Tier Harribel

Espada Cuatro: Ulquiorra Cifer

Espada Cinco: Nnoitra Gilga

Espada Seis: Grimmjow Jaegerjaquez

Espada Siete: Zommari Rureaux

Espada Ocho: Szayelaporro Granz

Espada Nueve: Aaroniero Arruruerie

Espada Diez (Cero): Yammy Llargo

Do not , my brothers. Instead, have a cool-ass showdown.

Lookit this dumbass. Dondochakka is a freakin' idiot, seriously. But he's a lovable idiot.