Yeah but that wasn't the full release of his Zanpakuto, Unohana is a senior captain and even she wasn't completely sure Aizen wasn't dead until she saw concrete proof. Also we don't know if that was even Aizen's release or just some weird kido.

Also we've just been mentioning Shinigami but the poll includes Arrancar. Grimmjow's Desugaron should take out a few ninja, Nnoitra's iron skin and all around craziness, Ulquiorra wouldn't even break a sweat, and Stark is so fast that even Ichigo and Kenpachi couldn't hit him before he disappeared again.

And it includes the Vizards who are basically gods seeing as the have hollow powers as well as shikai and bankai.

Point in short, ninja would lose no matter how you look at it.

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LOOK AT MY WITTY SIG!!11!!!!11

If it ever truly came down to a fight between them where every desperation move is pulled, including Naruto going to the ninth tail and letting the Kyuubi god of destruction go to town the winner would be: No one.

The number of deaths would be appallingly high, with key people on both sides losing everything in battle. Where ever they fought would become a wasteland of nothingness. And though the Bleach side would likely be able to claim 'victory' the cost to their ranks would open themselves up to their enemies and possibly lead to their own destruction.

It would be war, and in wars no one truly wins. Only one side losses 'less' than the other side.

To me the ninjas are such tricky bastards. But then again in bleach they can do some pretty fast awesome stuff so I am neutral.

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All that we see or seem Is but a dream within a dream. - Edgar Allen Poe

Imagination rules the world. - Napoleon Bonaparte

All men are born with a nose and ten fingers, but no one was born with a knowledge of God. - Voltaire

Bleach of course!

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Lots and lots of blood!

Bleach.

Because Naruto People are still only humans even with all the ninja gadgets && techniques.

And Bleach is not.

'NUFF SAID.

It's hard to kill dead people, on that note, shodai and nidaime's zombies could go toe to toe with a captain or two.

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Naruto

I want to say Bleach, because it's much cooler, but with purely released jinjurikis equal and over power Espadas, genjutsu's equal to Aizan, cursed seals + kekkai genkai overpower vizards. Also let's face it too many of the bleach characters are one trick ponies (some don't even have proper tricks) Then with village clans with their special recipes for power ex. Choji's pills, Rock lees and gai's gates, kibas dogteam, shinos bug team. The akatsuki puppet biz and overload of characters would just kill the bleach world.

Nartuo wins also with Kishimoto running out of ideas for jutsus he will eventually pull out a fusion jutsu which combining all the characters of naruto will f*** the bleach world.