Graphics is a bonus to the game, but MGS4 is def the best looking game out there. I mean look at MGS2, it's still one of the best looking games ever and it was made in 2001.
If you didn't like MGS3, chances are you don't understand the WHOLE story of the MG/MGS games.
This includes MG, MG2, MGS, MG2. The "Big" story thoughout the whole games is amazing. For exmaple did you know that the 12 men in the president's room at the end of MGS3 are really the la-le-li-la-lu, aka the patriots?
If you dont understand MG, you wont understand MG2, and if you haven't understood those 2, you wont get some of the things thats going on in MGS. Same thing for MGS2. However if you take a closer look at MGS2. You don not know much about the patriots. This is where MGS3 comes in. It gives us the answers to why some events happend the way they did in the previous game.
Another example would be a question like "Who is big Boss, what did he do before he was ldr of Outer Heaven?" "What's the story behind Ocelot?" All those questions were answered in MGS3
And now we're at the end of the sega. MGS4 will answer ALL questions in ALL previous games, especially MGS2.
Hideo is amazing I tell ya. Long live the MGS games!