Here's Mine:
Star Wars: The Old Republic - 25 GB
World of Warcraft (All Expansions) - 20-30ish GB
EVE Online - 30ish GB
Titanfall - 50 F@#%ing Gigs!
IIRC X-Plane 9 - 100 GB
Elder Scrolls V: Skyrim - 0.6 Terabytes (Because I'm running some 100+ mods or so)
Elder Scrolls III: Morrowind - 2 TB (I run EVERYTHING, because it's a sin not to)