It depends.
If you have one guy on the team with amazing vision, but his teammates don't see what he sees, it can often look like the stupidest play of the century (you know, like you-know-who and his million drop passes to the opposing team).
And, sometimes, a guy may have a great hockey IQ or vision, but just doesn't have the wheels or skills to put into motion what he sees on the ice.
It is the difference between Spezza and Gretzky or Crosby. Spezza has elite vision... But he lacks the ability to see where his teammates will be. Especially with poorer linemates. Alfie and Heatley had elite IQ's... Knew how to anticipate Spezza anticipating them. Crosby is better at playing with less skilled/smart players then Spezza (obviously). Gretzky had a complete sense of anything that would happen on the ice. It didn't really matter all that much if his linemate is Kurri or a far less smart or skilled player... He would find a way for them to score.
IQ is hard to really measure. A guy like Robitaille scored a ton of goals for 15 years+... Completely lacking speed. Sometimes with great linemates, sometimes as by far the best player on his line. He knew EXACTLY where to be to score all the time. Far more important then his skills or even his shot.
Karlsson could really use elite players around him. Imagine prime Karlsson on the ice with Prime Pizza line? He would be scoring like Coffey. Heck Pizza line mostly played with Phillips-Volchenkov!
Stone is so noticeable on the ice... On both offence AND defence. You can tell he sees the game at a very high level and has great anticipation and intelligence. Combine it with grit and a high compete level. Reminds me of a bigger, slower Alfredsson that is not as dynamic...however... In my experience it seems cerebral players of his type keep improving year after year after year.. Even into their 30's. Hope he does.