Based on last season Poni or Blake. This year, it could be anyone. As others have pointed out Kabs is the most talented, but it has been a couple of years since he put it all together. He is boom or bust but I will pick Grabo for this season. It will only take 60 points to lead the team in scoring and he can do that.
Guys like Schenn and Beauch and Komisarek could have great years and be extremely hard to play against but tough for them to stand out. If not Grabo then Kabs or even Toskala.