I completed Spider-Man Web of Shadows for the third time last night, got the 'Hero' ending, only one more ending to go and then I have all four. I only need four more achievments;
Heroic Accumulation (collect half of all collectibles) I have 1,048 and that's not even half.
Max Out Spider-Man (collect 2,000 collectibles)
Anti-Hero (Black Suit conclusion)
Super Ego (Black Cat spurned)