Well, now Pixar is a part of Disney and is actually calling the shots for the animation division, so technically, kinda-sorta, they are Pixar films.
And even though I'm two days late to the argument, I also agree that Infernal Affairs bests The Departed (which is still a really good film). The Departed is a full 40 minutes longer and adds little besides a hammy Jack Nicholson performance and a ridiculous love triangle. I can honestly say IA was to me, the more entertaining film. If I wanted to get full Canto-faggory I would also point out that Infernal Affairs II might actually be better then the original film, which would make the hierarchy...
IA2 > IA > The Departed > IA3
but that's just me.