4 was such a massive disappointment for me. There was too much focus on action and the cut scenes are just embarrassingly poor... oh, I mean, their pretty, well acted, and well shot, but they're long-winded to the point of lunacy, often redundant (see the scene with ocelot on his boat when US troops stormed the area -- for 10 fucking minutes), and end up feeling like a chore. And while the story may or may not have been good, I'll never know because I literally could not see the plot for all the exposition.
Linear action sequences, frequent installations, and a bold determination to give every character, plot point, and setting get the screen time they deserve made the whole thing sour to the taste. This is a game that does not amount to the sum of its (admittedly spectacular) parts.
OT: MGS 2 FTW, BTW. I was better at it than 3, so my fun wasn't spoiled by dying and being spotted so often.