Computer gaming sites like IGN, hardware sites like Anandtech, HardOCP, Beyond3D, Hexus... there is too many to list.
But The Dilly and Face The Jury are definitely smoking with traffic. I've seen people on FTJ that had over 200k posts on their forums.
http://forums.facethejury.com/forum.asp
Look at the posts... total and top posters. GFY is like a little turd compared to that