Frieza on 30 March 2010
That is my order, except I think of MGS4 and MGS as 1a and 1b.
I am curious to see anyone think of a rational explanation to back PO as #1 MGS game. I thought it was going to get 1 vote
MGS PO was a different style of game to the other so if people weren't fond of MGS1-4s style then they could prefer PO's which was more like a strategic coop game.