Halo 3 is much better than Joykill 2,
I took Killzone 2 back to the store and got a refund after 6 days as I wasn't impressed at all, COD 4 and World At War are a LOT better online and offline than KZ2 but Halo 3 owns them all for fun and online features,
Halo 3 might not look that great but no other FPS comes anywhere near it for gameplay, fun and features.....