LIGHTER is better!
If you're like most AHr's you will find yourself sitting in front of that monitor for hours on end. Think about it. One sortie can last 45 minutes on average. two will take you easily over an hour. A heavy or high compression (squeezer) headset will give you headaches after a while.
You might also want to determine if you just gotta have complete quiet as you game or do you need to keep one ear tooned to household noises (kiddies, wife ack, etc). If so, then think about getting one with only one earphone.
Hope this helps.