The stupidest thing with Amazing Spiderman was that they went for a complete reboot with the origin story yet again. It was way too soon after the Tobey McGuire movies to do pretty much the same plot again (just swap the villain and name of the love interest and add some side story about Peter's parents that goes no where).
Amazing Spiderman 1 was actually decent and Garfield was fine but it was just too similar to a movie I've already seen and loved so this just felt like a copy.
AS2 was pretty terrible. Night and day when compared to Spider-Man 2, which was the best of the trilogy. In AS2 it was almost as if they wrote it in reverse, with a planned climax of (SPOILER)Gwen's death and then trying to figure out how to get it there rather than letting the story grow organically.
I'm looking forward to seeing what Marvel can do, because they've done nothing but greatness over the last several years. I really hope they start with Spidey as an established figure or at least start him off as a new guy in town already in costume rather than going through the origin story yet again.