I believe last I checked my WoW hours were around 9,000. That was a while ago, though.
5,432 hours in GMod, with probably at most 150 being AFK.
Probably a couple thousand in FFXIV
Arma 3 is 1,000.
Mount & Blade: Warband is 327.
Lots of miscellaneous, and I don't really keep track outside of Steam.