I have just over 500 hours of Dota 2, which is not much, but I probably made at least 1000 hours in Dota 1 as well. (1500+ in total)
Also, at least 500 hours in TES 3 - Morrowind and only 100 in Skyrim.
Thousands of hours in Heroes 3/4 and Call Of Duty Modern Warfare.
I almost forgot, I...