Depends on the rest of the roster along with Westbrooks maturity/growth
As talented as he is, he can be even greater if he just focused more on DEF and creating for the team, especially when he had BOTH Durant and Harden as better OFF players compared to him
If Westbrook could just sacrifice his numbers/shot attempts, doing the simple plays, letting go of his ego, he would have a much better career and elevate his game with consistency
Simple is better for Westbrook, however his EGO along with the poor coaching of Scott
Brooks with the lack of play calling
Westbrook can easily be a candidate of DPOY for the next decade if he wanted it and teamed up with the right talents like Ariza, a younger Marion or Battum, possibly even Iman if he recovers to his rookie year play, with the length, versatility, shooting abilities to spread the floor with Durant/Ibaka with the growth of Steven Adams though I believe Kelly Olyncks would have been a greater fit for the team with his all around skills, ability to shoot the ball, put the ball in the floor as a C, passing ability, post up skills, and passing game
Both Ariza and Kelly Olynk would be featured as the 4th/5th options that can play off Durant and Westbrook, even Ibaka
Add that with the development of Adams, Reggie Jackson, Lamb, and Perry Jones, all on the bench, they can be the toughest team in the tough Western Conference
I think they made a mistake by trading Harden and if OKC doesnt win a ring by the time Durant is a UFA, he could be frusrated and join a new team
Especially with Spurs getting older with possible retirements especially if they win this years Championship, only with Clippers, Rockets, maybe Blazers and Mavs to challenge he conference (depending on what they do in the near future)
So yes, I would love Westbrook but not if it leaves us with a comparable situation that we put ourselves in with the trade of CA