well the ps3 has little lag because not as many people play the ps3 demo. When I play PS3, it tend to never get full games 12v12. But, that's when I bring up the problem about gold rush.
If you're in a game with maybe 4v4, the attacker will almost always win. Since there are so few Attackers, it would take a lot of death from those 4 people to run out the reinforcements. Thus, letting them take as much time as they want.
But Conquest, the game mode being released for download after the game is released, is very even. Since both teams have tickets (reinforcements), it's pretty fair no matter how many people on each team. I can't wait until conquest.

^