I think the biggest problem with dungeons and dragons is that they fired the literature people and hired mathematicians. Modern rpg's are just way too crunchy. Look at the supplements pre 3.x and you see very few new rules. They are there and optional, but fewer. They used to put out cool books like Cult of the Dragon, Scarelet Brotherhood, etc. They were books that detailed settings and playstyle rather than crunch. Just my humble opinion.