Not too bad really, the consoles get the most attention because they're the most comfortable/less irritating to play with/on.
PC
Rome 2 Total War (Still not finished a campaign yet, maps too big and its feels like I'm going nowhere, though I am trying)
Half Life 2 (Sue me)
Towerfall Ascension (bibibibibibibibibi)
Call of Duty Ghosts (Still in the wrapper. Sorry Uncle, I'm just not interested)
Dragon Age Origins (Slow, slow, slow game)
Wargame: European Escalation (Terrible all round, what a waste of money)
Skyrim (Had it near 3 years and still not finished it, too boring for me)
The Witcher 2 (boring, awful combat, can't find the will to go near it again)
System Shock 2 (again, not as fun as I remember it)
Knights of the Old Republic 2 (14 years later and I still can't be bothered finishing it)
Hitman: Absolution (Still in the plastic wrapper)
From Dust (....what the hell)
PS1
All finished
PS2
All finished
PS3
Only FFX HD, which I'm currently playing through now
PS4
WatchDogs (The case is here next to the console, but the disk is somewhere down the back of the garden and hasn't been seen for a dew weeks....)
360
All finished, all sold
Wii
All finished