Gametrailers.com recently posted a video with their top 10 Fallen Angels in the video game industry. On that list at number 7 was splinter cell. They state that, while conviction was not a bad game, the new direction of conviction to a more action oriented game has essentially robbed the series of what made it unique. Check it out.
I agree with that statement. It was hard to see clips from earlier games placed next to conviction. Made me miss the old game style. Im off to play Chaos Theory.