I played COD on PC from MW3 to Advanced Warfare. The only hacked servers I encountered were on MW3, but it was still loads of fun and you didn't have to put up with kids like the console peasants do.
The most fun I've had with a hack/glitch was with MW2 (that game had a few) on Rust on Xbox 360 where it had way too many players in FFA.
It was absolute mayhem but pretty fun, considering how crazy all the kill streaks, guns and perks were.