Anime with the most blood in it?

Probably Elfen Lied. There really was a crazy amount of blood in that series.

So yeah I finally watched Elfen Lied about a day ago...

It's definitely the bloodiest anime I've ever seen. I could tell after the first few minutes of it.

Elfen Lied. First episode was awesome, a naked chick killing people.

I really need to keep watching Another. Stopped before people started dying. But it's night time and I don't wanna.

Elfen Lied.

I was still innocent back then..

Another.

Too much blood!

I would also add Berserk, Blame!, and Gantz to your list.

Mine is Fist of the North Star.

BUCKETS OF BLOOD, BUCKETS OF BLOOD.

Sword of the Stranger, had lot of ownage moments with sprayed fountains of blood.
Full Metal Alchemist had lots of blood in it as well.

and the most blood I've seen was on Hellsing and Berserk

Gantz and Elfen Lied
After watch i really loss of appetite, bad experience but good anime