He lacks the ability to create his own shot and will therefore never be a Top 2 SG in this league. He will improve, but his handles are a bit shaky and don't look natural. He will never reach Wade's, Kobe's, DeRozan's or Ginobili's ability to create of the dribble and get his shot at will. Right now he is decent at straight simple drives to the basket and spot up jumpshots. If he improves his handles, he can be a Danny Green or Wes Mathews kind of player with serious athleticism. That would make a really good player, but certainly not a Top 3 SG.
But to be honest - we dont need a SG, that can create at will, if Cousins and Gay are healthy and on the floor. Ben should compliment those 2 really well, if he reaches his full potential. I would love to see the Kings call more plays for Ben and get him to run around multiple screens. He is so fast, it would really cause difficulties for the defender, if Ben learns to use screens like Reggie Miller or Ray Allen. I think that has to be the next step in Ben's development.
I'll grant you Kobe and Wade. Those are completely different types of players. And you might as well add Harden and Evans to that list as well. But DeRozan was strictly a midrange shooter and crazy athlete when he came into the league. He's added to his game a lot since then. Ginobili is crafty with the ball but there's nothing in his skillset that Ben couldn't acquire through hard work. If you want to cap his ceiling as borderline All Star and second option on a good team, I think that's fair. But I think you're also forgetting how young Ben is. As he learns how to pick his spots and when to be aggressive, he could grow into a star scorer like DeRozan or Ginobili in a few years. He's in that class of talent I think. A lot of the criticisms people are making about Ben's game were also made about DeRozan at a similar stage in his development.