Killzone 2 vs Resistance 2?

I plan on buying only one of these two games. I can only buy only one (have more than enough FPS games at the moment), they both got a 9.0 score on GameSpot. So which would you recommend me to buy?

From what I understand:

Killzone 2 has better graphics

Killzone 2 is much more atmospheric and epic

Both have great Multiplayer

Resistance 2 has an extra online Co-op mode which Killzone 2 doesnt

Resistance 2 has more enemy variety

So which game would be the better purchase?

i have both and i would say buy resistance2 if you have PSN although some users will say the opposite (without internet probably KZ2) , while KZ is great , graphix and everything , resistance has something i cannot describe which makes me play this even more oftne - i mean the online game , the whole unlocks/levels/collectings are very well made so it keeps you hooked

I plan on buying only one of these two games. I can only buy only one (have more than enough FPS games at the moment), they both got a 9.0 score on GameSpot. So which would you recommend me to buy?

From what I understand:

Killzone 2 has better graphics

Killzone 2 is much more atmospheric and epic

Both have great Multiplayer

Resistance 2 has an extra online Co-op mode which Killzone 2 doesnt

Resistance 2 has more enemy variety

So which game would be the better purchase?

honestly i dont care so much about graphics or hypes , i was just recommending the game i enjoy more