I prefer the 200 - 300 ticket games. The 600 ones are boring me to death now, I am really going off Battlefield for that reason. They go on for far too long and when it's one sided it is so boring. I was playing Tehran Highway night before last and we managed to push them back to their spawn point and the guys weren't good enough to get past us so we just had to wait an age for the tickets to run out so we could move on to a different map.
I have also noticed on the Xbox since private servers have come out a lot of the time they are half full which makes it even more boring. Hope something is done about it soon