Blame the writing and the movie timelines. The Prequels had some top actors in it and every one of them had cringe lines. They can only work with what they're given. He's great in other movies, and I think in many scenes in Star Wars he was good as well, if the writing was.

I don't hate Hayden, I don't even hate the main premise of the movies, I hate how Anakin's life is rushed through and not properly set up for the fall.