As I've mentioned a couple of times in chat, I'm not sure I agree that Tuck is the best comparison to Edwards.
Tuck was a better passer, better perimeter shooter, and just all around had a stronger role in regulating the offense (as opposed to Edwards who is usually the final recipient of the ball in play).
Edwards, on the other hand, is already just as or more impactful down low than Tuck in all aspects (rebounding, scoring, defending). This will only get more obvious as time goes on, though I also think that Edwards will improve from midrange and near-long range as her career goes on.
Edwards reminds me a bit of a smaller but faster Tina Charles. A Charles Jr., if you will.