RenegadeRocks
Legend
My favorite part about the MGS games is the complexity of every character...and it steps away from the common tradition found in games and even films where characters are innately good, or innately evil. Noone is evil in MGS, each boss could be your friend or foe, and each has a backstory to explain their actions. If at first you don't understand their actions, read into their backstory.
My favorite characters are Eva (good or bad?), Ocelot (good or bad?) and Big Boss/Naked Snake (good or bad?) - playing as the latter in MGS3 really adds a lot of depth to MGS4. It'd be very hard to gain that kind of feeling from the player, without playing at least MGS1 and MGS3 beforehand.
Ditto ! No two characters can look each other in the eye(except for Otacon and Snake) coz there are so many layers to each character which the other doesn't know.
For me the relation b/n Naked Snake and The Boss and the Love story of Naked Snake and Eva were the most complicated yet most warm relations ever shown in a game or movie. The love making scene at the end of MGS3 was the climax of a long drawn struggle of a trust and temptation which made the scene so fullfilling ( ).
I have not finished MGS4 , so won't comment on that, but playing as Naked Snake in MGS3 is closest a player can get to a game character !(at least for me)