5.1 surround sound system - Which is the best game on PS3 to show it off?

[MetalGearSolid_4ever]

Killzone 2 is amazing..MGS4 is also AWESOME..

These 2 games have scenarios set it epic battle fields, so i guess thats why they stand out for me.

As for U2AT, i'd have to wait till Christmas to find out.