Err you're just stirring something. First post on an account which has 'Killzone' in it? You're obviously someones alt.

Quality maybe, sales NO!

killzones online will definetly be better.

because hanestly they really need to change up the online for halo.

and graphics wise killzone will also win but sales wise it wont.

A good way to decide would be to consider the sales of the last full games in the series (24th Jan)

Halo 3: 10.74 million and top selling game on the Xbox 360
Killzone 2: 2.19 million and 17th best selling game on the PS3

No comparison, even with a comparable userbase, Killzone 3 doesnt stand a chance. And lol at whoever says Killzone 2 is a Halo killer

"This is what I heard: There was talk of trying to release the game by the end of 2010 to compete with Halo: Reach"

Who are you and who have you been talking to? These days, everybody and there grand mother has some "reliable secret insider" it seems.

quality wise maybe both Halo 3 and KZ2 were AAA games and there is no reason to doubt that their sequels will be anything less

sales wise not a hope in hell, the only exclusive games with a chance of matching reach this year are the vitality sensor game, pokemon HG/SS and GT5, I hope the OP realises when Reach inevitably triples killzone 3 sales he will be setting many unfortunate Sony fans up big time

ha just another david and goliath story (uncharted 2 and modern warfare 2)

remember quality(killzone) is always better than quantity(halo)

modern warfare 2 may have sold over 10million more but uncharted 2 still ended up being the best

My opinion:
Killzone 2- Graphics.
Halo 3- Gameplay, Multiplayer, Campaign, Vehicles and Sales.

This is probably what will happen with Halo: Reach x Killzone 3.

in my opinion killzone 2 sh**ed on halo 3 due to the fact that halo 3/osdt was made in an old engine. but killzone 2 doesnt even use the full power of the ps3 and gurilla already said  they plan on taking killzone 3 even further. i also feel reach wont be a match for killzone 2 so i wouldnt even compare reach to killzone 3. yeah halo will take sales but that's it.

we already went over this

killzone has a better multiplayer.