The Metal Gear Solid 4 System Data holds your customized options and other preferences associated with it.
If you mean story wise then I believe it goes: Metal Gear Solid 3: Snake Eater Metal Gear Metal Gear 2: Solid Snake Metal Gear Solid Metal Gear Solid 2 Metal Gear Solid 4 But I may be wrong, and that isn't counting either of the Portable Ops games.
metal gear solid1, metal gear solid 2 sons of liberty, metal gear solid 3 snake eater, and metal gear solid 4 guns of the patriots.
Metal Gear Solid, Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 3: Snake Eater
The Metal Gear Solid 4 System Data in the PlayStation 3 Saved Data Utility folder holds your customized options and other preferences associated with it.
No. According to Microsoft, Metal Gear Solid 2: Substance for the Xbox does not have backwards compatibility with the Xbox 360 system. You can however purchase Metal Gear Solid 2: Sons of Liberty as part of the Metal Gear Solid: HD Collection for the Xbox 360.
PlayStation.
Yes you can, it is on MGO.Metal Gear Online for Metal Gear Solid 4 which is on the PS3™ System."while in Metal Gear Online, the Metal Gear Solid 4 version of Raiden appears as a unique player character."
As of 2013, there are no plans to release Metal Gear Solid 4: Guns of the Patriots on the Xbox 360. Metal Gear Solid 4has been announced as part of the Metal Gear Solid: The Legacy Collection on PlayStation 3. Given that the next generation of video game consoles will soon be announced, it is unlikely that Metal Gear Solid 4 will be adapted for the Xbox 360 system.
Metal Gear Solid happened in 1998.
Metal Gear Solid 4: Guns of the Patriots
The best Metal Gear Solid game is what you define as 'best'. Personally, I think Metal Gear Solid 4: Guns of the Patriots is the best Metal Gear Solid game, it is also the highest rated Metal Gear Solid game ever to be developed and published.