You must really love FF... even 13?

PS1: Metal Gear Solid
PS2: Metal Gear Solid 2
PS3: Uncharted 2
PS4: Metal Gear Solid V

I swear I don't have some MG bias, but they just happened to be my favourite game on the Sony systems most of the time.

PS1: Metal Gear Solid
runner up: FF7

PS2: Resident Evil 4
runner up: God of War 2

PS3: The Last of Us
runner up: Bioshock Infinite

PS4: Uncharted 4
runner up:Metal Gear Solid V

PS1: FFVIII
PS2: FFX
PS3: Didn't like this gen much, but from my top 50 games list #19 is Dynasty Warriors 7, and #21 is Infamous 2.
PS4; Nioh, FFXV, Uncharted 4, and Infamous Second Son in contention atm.

PS1
Platinum: Final Fantasy VII
Gold: Final Fantasy VIII
Silver: Final Fantasy IX
Bronze: Chrono Cross

PS2
Platinum: Shadow of the Colossus
Gold: Resident Evil 4
Silver: Final Fantasy XII
Bronze: God of War 2

PS3
Platinum: Killzone 3
Gold: Resistance 3
Silver: Uncharted 3
Bronze: Uncharted 2

PS1: Harvest Moon: Back the Nature
PS2: Persona 4
PS3: Metal Gear Solid 4: Guns of the Patriots
PSV: Persona 4 Golden

PS1) Time Crisis 1 - I spent hundreds of pounds on the arcade. This was the first time I was able to bring the arcade experience home.

PS2) SotC - what just bosses and no other npc's of any sort?! However it worked and it was beautiful.

PS3) Between Uncharted 2 and TLOU.

PS4) so far it's Bloodborne.

PS1: Resident Evil 3: Nemesis
PS2: Grand Theft Auto III
PS3: Skate 2
PS4 (so far): Fallout 4

PSP: Mega Man: Maverick Hunter X
PS Vita: Akiba's Trip: Undead & Undressed

PS1: Metal Gear Solid followed by Final Fantasy VII
PS2: Resident Evil 4 followed by Shadow of the Colossus
PS3: The Last of Us followed by Red Dead Redemption
PS4: (so far) A coin toss between Witcher 3 and Bloodborne followed by Uncharted 4.

PS Vita: Persona 4 Golden followed by Tearaway

PS1: Vanguard Bandits
PS2: MGS2
PS3: Way of the samurai 4
Vita: Valhalla knights 3