ok this is who I would want

Killzone 2

Sev

Rico<--- just so i can destroy him

Radec - Locked until win a challenge

Uncharted 2

Nathan Drake

Chloe

Lazravich

Sully - DLC

Elena - DLC

Rachet n Clank

Rachet

General Allister Azimuth - locked

Dr. Nefarious

Clank - DLC

Captian Qwark - DLC

inFAMOUS

Cole

Kessler - Locked

Metal Gear Solid

Solid Snake

Raiden

Liquid Ocelot

Big Boss - Locked

Resistance

Nathan Hale

guy who shot him at the end of the game lol, name???

Chimera Elite

Final Fantasy

Cloud Strife

Sephiroth - final boss - Last Unlockable character

Yuffie

Little Big Planet

Sack Boy

God of War

Kratos

Zeus- locked

Athena

Unfranchised Characters

Carl Johnson aka CJ - San Andreas

Crash banticoot - Crash series

Jak- Jak n Daxter

Daxter - Jak n Daxter

Tempenny- SAn Andreas

Sweet Tooth - Twisted Metal

Gabe Logan - Syphon Filter

feel free to add, I know I'm missing A LOT of people, I will be sending this to sony imo

You need to add ares to the god of war list! My list would be like this.

God of war
Kratos
Zeus
Ares
The Last Spartan(the guy you fight in the dark room in 2)

Ratchet and Clank
Ratchet
Clank(why have him as DLC? thats silly)
Nefarious
Quark

Metal Gear
Snake
Raiden
Big boss
Liqud

Killzone
Radec
Sev

Infamous
cole
Kessler

Uncharted
Nathan
Elena
Chloe
Lazravich

crash bandicoot
crash
dr cortex
tiny

Jak and daxter
Jak
Daxter

Alundra
Alundra
Zorgia

Heavenly Sword
Nariko
Kai

Shadow of the Colossus
Wander

Maybe some peeps from WKC

Oh and you can play through a challenge mode that has many baddies from the different games, as well some from demons souls that just tear you up ;)

It needs more girls.

Well, there are girls in many of the games that I haven't played. So i looked through some on wiki. and used ones that I figured fought. I would have named some other characters. But i didn't know what their role was or if they were the type that fought.

Noctis. After you send it to Sony, chances are this game would even release before Versus :p

I disagree with half the characters in the game. Nathan Drake is good. But to have elena, sully, chloe etc. would just be overkill. And besides what "moves" would they have? Someone that just knows how to shoot a gun isn't really the best character for fighting games, and when that's a large chunk of the characters it would be down right awful.
Throwing in more gun shooters like Nathan Hale and the KZ2 crew would just be a total lack of diversity and creativity for the characters. It seems like you are picking your favorite characters(my favorite too!!!) rather than characters that would be best if Sony made a fighting game.

I'd say throw in the folklore characters(the guy or girl, or both), they could easily have unique attacks.
Nariko would be a good fighter with plenty of stuff to work with.
The boy from Ico would be good or better yet the boy from the last guardian, he could call for his pet's help too for a swoop attack or something.
How bout the main character from MediEvil.
Or the lead from the WKC, with the ability to turn into the white knight.

I guess I'll make a list too...

God of war
Kratos
Zeus or Ares (not both)(unlockable)

Ratchet and Clank
Ratchet with Clank
Nefarious
Quark(unlockable)

Metal Gear
Snake or Big Boss
Raiden(unlockable)
Liquid snake/revolver

Killzone
Radec

Infamous
cole
Kessler

Uncharted
Nathan

crash bandicoot
Crash

Spyro the Dragon
Spyro

Jak and daxter
Jak with Daxter

Alundra(I'll keep em cuz I dont know the game)
Alundra
Zorgia

Heavenly Sword
Nariko
King Bohan(unlockable)
Kai(unlockable)
Roach

SOTC/Ico/Last Guardian
Wander or either of the boys

White Knight Chronicles
Leonard (can turn into the white knight)
Kara (can turn into the black knight)(unlockable)

Sly Cooper
Sly(unlockable)

Folklore
Ellen
Keates(they'd each have unique folk attacks)

MediEvil
Sir Daniel Fortesque

FF7
Cloud
Sephiroth(unlockable)
Aeris(unlockable)

Resistance
Nathan Hale (consumed by the virus)(unlockable)

Twisted Metal
Sweet tooth(unlockable)

Syphon Filter
Logan(unlockable)

Okag
Ari(with Evil King Stan as his shadow)

That's about 35 characters(12 unlockable), 9 of them villains and 3 semi villains(infected Hale/Ari with Evil King Stan/Roach).
I agree there should be a few more females, there is only 5. However there aren't many good female fits for the game.

So no grey fox or sweet tooth from twisted metal
and who could forget Vincent valentine or squal

Spoiler warning on Resistance characters please. Haven't beaten it yet.

I haven't even played the game but isn't what I said given away in the cover art and the advertisements of the game anyways? 

you didn't read teh list