Deadpool is pretty much my favorite super(anti-)hero at this point. I haven't seen "X-Men Origins: Wolverine" (yet), so I don't know how they portrayed Wade Wilson in the movie. To be honest, I don't really care all that much. Deadpool and Wade Wilson are pretty different in character from what I understand, so I'll reserve judgment until they make an actual Deadpool movie. If that ever happens.
(I swear, though, if a movie is ever going to happen and they're going to turn Deadpool into an angsty, humorless wimp like they did with Spider-Man, I am going to hurt somebody.)