Kingdom Hears 1&2 and Fallout 3

this/last gen + handheld: soul sacrifice, dark souls, ffxiii, valkyria chronicles, re5 and 6, resonance of fate, star ocean 4 and starhawk

those first to pretty much sum it up for me. I never finished skyrim despite that fact. lol

Skyrim, Fallout New Vegas, Dragon Age Origins and Dragon Age 2. There is probably more but those are the one I recall are the most recent.

PS3:
Fallout 3 (including DLC)
The Last of Us MP
Unreal Tournament 3
Assassin's Creed 2 (including Brotherhood and Revelations)
LittleBigPlanet (including SP, MP and level creator)
The Orange Box
Gran Turismo 5

PC:
GTA San Andreas
Counter Strike 1.6
Left 4 Dead 2

I think it was Skyrim and it was thanks to lots of hours of leaving the game on standby. The max I did "legit" is Persona 4 with about 77 hours.

Skyrim(360)
Pokémon X
Pokemon Black 2
Team Fortress 2

Skyrim, Oblivion, Modern Warfare 2 , 3 and COD: WaW, Blast Corps, Mario 64, Pokemon red and silver. and some more i don't remember now

Lots. Most recently Xenoblade Chronicles at 165 hours for 100%.

Fallout 3 @ 200+ hours

I usually hit at least 100 in most RPGs easily.

Way too many to post. Off the top though, Skyrim, Minecraft, Every GTA, Oblivion, Monster Hunter, Wind Waker, Pikmin 3, State of Decay, Assassin's Creed IV, Mass Effect 1-3, COD Black Ops 2, Resident Evil Revelations, Splinter Cell Blacklist