KDB was the more rounded player with shooting and vision that Eden never had.
Eden had a bit more tight control and a lot more dribbling ability.
However, for me the big difference between the 2 was teamwork, aggression, the mental aspects of the game. Eden does not have a single great game in the toughest stages of the CL, for ex. Wasn't the most dedicated player in games or in training; multiple reports from former teammates indicate that.
For me, personally, KDB was the more dangerous player esp with his shooting ability -- difficult to defend against that.
Down to stats and awards, there is really no comparison.