Now, look at this:

God of War without a doubt!  Every other hack n slash pales in comparison to its epicness!!

God of War II.

Please don't kill me.

Not an hack and slash.

http://en.wikipedia.org/wiki/Diablo_2

Elements of Hack and Slash and the creators calling it a Hack and Slash is close enough for me.

So yeah, Diablo 2.

Haven't played GoW3 yet, but at the moment it's probably Bayonetta.

It was never my favourite genre though.

Tie between God of War II and God of War III. Those saying Bayonetta can eat platypus poop =l

God of war

I can't say anything until I purchase Bayonetta. I've heard that gives a lot of hack and slashes a run for their money.... at least the 360 version does ;)

for me id say

1 GoW series
2 Ninja Gaiden series
3 Onimusha series
4 Devil May Cry 1, 3
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Bayonetta