Halo 3 or Killzone 2. Which has the better Multiplayer feature?

[Squilliam]

Halo is also better loved, and it goes beyond the name Rpruett... Hype can make you buy a game you don't like. Hype doesn't beat word of mouth or keep people playing over a year after release.

Americas software, KZ2 -> 21k, Halo 3 20k.