FFXIII has nothing to do with the "best" of anything.

All of those PSOne games work on PS2. And every single one of them have bar perhaps FF have superior sequels on PS2. The 3rd party support on PS2 was unprecedented. You could ignore GTA on PS2 - there were tons of other games.

Just off the top of my head, Wipeout, Gran Turismo, Resident Evil, Parasite Eve, Vagrant Story, FF7 and of course Metal Gear Solid. You may not want to hear it.. but The PSX really did make a more mature audience get into console gaming... or should I say, continue playing console games.

And to OP, It was the most successgul console ever released. Not the "best console ever released". Hell, in the PS2 generation the XBOX was the "best" console of that generation. 

All fantastic games. No argument there. It's almost criminal how little time I've spent with PS1 games, but what I've played, I've loved. Sega and Nintendo had mature content like that too, though.

Off topic, but have you read the Parasite Eve book? Super weird. I loved it! Remember in the game when Meada talks about his facination with a similar smaller scale incident that took place in Japan? That's what he's referencing.

I bought one for the GTA games. They were good.

On a personal level, I prefer the original Playstation. Its ratio of great games is amazing. The PS2 had more of everything and is certainly the King in terms of sheer content.

I prefer the first, but since the ps2 is backwards compatible then I guess it's better.

my favorite console is the SNES though.

My favorite was Snes followed my sega genesis then PS1. For me at that time Dreamcast was the better console and even the ps1 was better.

No, PlayStation 3; Cell Processor.

Yes it is. And probably will remain so for eternity.