One thing I hope to do someday is to own all of the Metal Gear Solid games that follow the "main" storyline (which should be possible via the Internet). I do plan to own Metal Gear Solid 4, Metal Gear Solid: Portable Ops (which should explain how Big Boss became evil), Metal Gear Solid 2: Substance, and Metal Gear Solid 3: Subsistence. But my main problem comes with the original Metal Gear Solid. I can easily buy the PlayStation 1 version as part of the $30 Essential Collection, but the GameCube remake The Twin Snakes makes improvements with several aspects of the game (the graphics being one of the most obvious). Then again, people have complained with some of these changes.
To put it simply, which version of Metal Gear Solid should I buy, the PlayStation 1 version or the GameCube version?
NOTE: I don't have a PlayStation 1 or a GameCube, but I do have a PlayStation 2 and a Wii, which are fully backwards-compatible with all PS1 and GC games, so I don't have a problem with consoles.