Cp3 gives curry fits.
But other than that...Steph is a good defender. He just doesn't LOOK like one. People seem to think Russ is a good defender when he's bad on that end. They just see the steals and his physique/athleticism and conclude he's a good defender. He's not.
Stuff is also a very good rebounder for his position. Putting up almost 5 per game for his career...and 5.5 this year. Those are SG shooting guard numbers. Steph being frail, light skin and baby faced has people thinking he doesn't contribute on the other side of the ball . He's improved ALOT on the defensive end. Watch him. He's always in position.