[quote name='chosen1s']But I believe Twin Snakes on the Gamecube is the official "remake" of Metal Gear Solid, yes? Supposed to be slightly better I think but I guess it's all about preference.[/QUOTE]
Twin Snakes was a collaborative effort between Nintendo, Silicon Knights, and Konami...so, yeah, official remake.
I've played both, and let me tell you, Twin Snakes is more than just "slightly" better than the original (my opinion, as is most of what follows). The PSX version simply pales in comparison. They added all of the superior gameplay elements of MGS2, including first-person firing, hanging, having to hide bodies, etc, and they redid the music, re-recorded the voices, and, of course, redid the graphics, so it looks pretty much just as good as MGS2. It's much more immersive.
But the thing that really blew me away was the cutscenes. They are, beyond any doubt (in my opinion), the best real-time 3D cutscenes of any current-generation game. They brought in Ryuhei Kitamura, the director of Versus, to do all-new cutscenes, and my god, does it ever show. The choreography, the motion, the detail, the camerawork...it's really amazing.
Whether you've played the original or not, you really ought to try Twin Snakes...it's amazing, and the game MGS was always supposed to be, in my opinion.