Comparing stats is somewhat like comparing apples to oranges since they're on vastly different teams and playing in different circumstances. Clark has much higher usage than Paige in that she's the focal point of the offense more frequently. She takes 19 shots per game and averages almost 7 assists and 5 turnovers per game, meaning that the offense flows through her quite frequently. For being such a high usage player, her numbers are fantastic. 48% from the floor and 40% from deep is outstanding for a guard who takes so many shots. I find it ironic how a lot of people here are critical of her percentages but give more respect to Dana Evans who is shooting 44.5% from the floor and 38% from 3, and Evans has faced a lighter schedule too. Clark has incredible range on her shot, taking VERY deep threes that she can consistently knock down, and she has been a very consistent shooter, shooting over 40% in 17 of her 20 games so far. The lack of efficiency is a byproduct of taking a LOT of shots and having the ball in her hands so much.
The main difference between Paige and Clark from a statistical standpoint is that Paige is lower usage and a lot more efficient. She has a better A/TO ratio and ridiculously high FG/3pt percentages. She's had monster games in 2 of her 3 big matchups this year (3/4 if you include Marquette) and has come through big time in the clutch this season for the Huskies.
As far as eye test, both are outstanding but I'd give the edge to Paige based on games I've seen due to efficiency and decision making. She has a knack for taking and making tough runners and jumpers inside the arc and just doesn't make a lot of mistakes on the court. Both are great passers but Paige makes fewer errant passes than Clark does. Clark appears to have more range on her shot and hunts down perimeter shots more frequently where the majority of Paige's shots are taken inside the arc, and often off screens or off the dribble. Paige is also a much better defender. Different players in different situations, but both have been remarkable.
I'll end this by saying that people seem quite concerned about comparing the two with a motive of establishing that Paige is the superior player, but honestly both should just be celebrated. These are the 2 best freshmen point guards in NCAA history and both have put up dazzling seasons.