It's close, but, I'd say Nolan North from Hulk vs. Wolverine is my favorite.

There's only been like what two? Three? not really a big list to choose from

I like Nolan North and John Kassier both equally, I think John's voice works best in video games but wouldn't work as good in movies, and I think Nolan North's voice works better in movies but wouldn't work as well in video games.

I like John Kassier. But Nolan North made the character more accessible to people unfamiliar with him. They both captured the essence of Deadpool very well and that's what is important.

both but I liked Nolan North a tiny bit more XD

"I like John Kassier. But Nolan North made the character more accessible to people unfamiliar with him. They both captured the essence of Deadpool very well and that's what is important."

"There's only been like what two? Three? not really a big list to choose from "

this one, whoever he is

Kassier really did the gravelly voice well.

"@War Killer said:

"There's only been like what two? Three? not really a big list to choose from "

Not limited to pros. There's

DeadpoolandFriends
http://www.youtube.com/watch?v=NkdGyIb3gEc&feature=PlayList&p=35E5E316656A7FED&index=6
FanFilm
http://www.youtube.com/watch?v=eCIcLlKMJks&feature=relatedand others. "

" @Abnormally Warm Guy said:

"I like John Kassier. But Nolan North made the character more accessible to people unfamiliar with him. They both captured the essence of Deadpool very well and that's what is important."

Who voiced him in Hulk VS becasue he was great, Deadpool in that moive is one of the top reasons  that made Deadpool one of my favorite Characters "

"@War Killer said:

" @Abnormally Warm Guy said:

"I like John Kassier. But Nolan North made the character more accessible to people unfamiliar with him. They both captured the essence of Deadpool very well and that's what is important."

Who voiced him in Hulk VS becasue he was great, Deadpool in that moive is one of the top reasons  that made Deadpool one of my favorite Characters "

Nolan North

He also plays Raphael in TMNT, that's two of my fav characters by one same dude :D"

Ohh, deffinately Nolan North.
Ryan Reynolds would only have the voice for him if it was live-action.

Dude from Hulk Vs. was by far the best, IMO.

Well if we're not just including pros.

THIS GUY IS GREAT:

John Kassir and Nolan North both do good jobs. Can't really say which one is better.

IMHO

Kassir:

Pro:
He sounds convincingly unique, it's something i can hear anywhere, anytime and say "hey, that's (Kassir's) Deadpool" , which is supposed to happen in comics.
Con:
Kinda annoying after you hear him too much.

North:
Pro:
It doesn't get annoying , but still is a cool voice, i would like North to be Deadpool's "main" voice in media.
Con:
It lacks the "special touch" AKA the yellow bubbles, sounding a bit too generic for someone like Deadpool.

As you can see, IMO where one actor is good, the other lacks, and vice versa.

Nolan North and John Kassier are both really good, i cant choose between the two

am i the only one who thought nolan north made a horrible deadpool?

Its a tough choice, but I choose Kassir, though there isn't any official voice of Deadpool I believe in one of the comics his voice was described as  "a mixture of gravel and gasoline" Kassirs Deadpool voice fits that description more than any of the other few Deadpool voices I heard.

Nolan

Demi Moore.

Nate, Deapool and Friends FTW!

"am i the only one who thought nolan north made a horrible deadpool? "

" @Abnormally Warm Guy: If I had to pick one for his inner voices in his movie I'd pick Kassir  for the insane voiceand North for his brain "

" I'd say North, cause he's actually funny and it seems more natural for him. Kassir?.... Ehhh not so much. Just didn't sound right. "

Nolan North FTW  

Nolan North

We need a Deadpool animated series right now!

" We need a Deadpool animated series right now! "

Marvel Ultimate Alliance

I love Nolan North's interpretation. I can't stand that hoarse-throated goofy Roschach voice on Wade, nuh-uh.
 
 
It's the reason I refuse to buy Ultimate Alliance 2.

Yeah, I do think that in the comics he is described as having a rough more gritty sounding voice, and that is how Kassir plays him, but when reading in my head DP's voice is always sharp, smooth and very smartass-ish and that is how Nolan North plays him and he pulls it off so well. So I have to go with North on this one. 

This is kinda hard.
 
Hurm..
 
Well I think John Kassier's voice is more unique and the comics do describe his voice sounding like Demi Moore drinking Gasoline.... Although no matter how hard to try to read Deadpool with the voice in my head it just doesn't fit. It always ends up sounding more like Nolan North. Personally I think If Nolan North just took his voice and horsed it up just a tad, then it'd sound exactly like how I picture Deadpool's voice. 
 
My Vote goes to Nolan North for this one.

I liked the guy from wolverine vs hulk

The guy that voiced Deadpool in Marvel vs Capcom 3.

" The guy that voiced Deadpool in Marvel vs Capcom 3.

       

"

i know this is a random person to propose, but what about jerry trainor? his voice for some reason just makes me think of deadpool.