I'm amazed of six-graders who think that Diablo was never a PvP game. You guys never played Diablo 2.
On topic, I'd really like to have at least something like 2x2 arena deathmatch with random matchmaking and stuff like that. Fuck, I was promised it when I bought the fucking game, right?
In what is Brawling in D3 different than D2 PvP? To me it looks like the exact same clunky feature. At least in D2 you could do it everywhere, and the only reason why "hardcore" (read not-casual) players played it that much was because there was nothing else to do other than excessively boring mf runs.