>>714642412 (OP)Deus Ex is an amalgamation of conspiracy theories and real history. It brings up real facts and uses them as a basis for ongoing evens in the game, but while the writing is good and FUN I don't think it was really much political commentary OR predictions. Unless you count the 9/11 thing but that's just not true.
MGS2 definitely 'predicted' more with it's AI bullshit and the commentary had a much bigger impact, but that's because MGS2 was written to be like that. Deus Ex was made as a conspiracy theory cop shooter and deviated from it's roots when it was in early development/drafting.
Deus Ex has a more fun and better story while MGS2 does the gay commentary and predictions part better. Both are good games.