Cally may be up there in defensive ability with those guys, but he has no where near the talent on offense as Datsyuk or Kesler for sure, and MAYBE hes close to Staal.
I'd say Cally is even with. J. Staal in pure offensive production, assuming Staal continues his performance from last year. They were on pace for the same amount of points last season, both missing time to injury. I can definitely see Cally picking up 60 if he doesn't miss significant time. Maybe more if they keep him with Richards.
Datsyuk is a monster. Kesler and Staal don't put Cally out of the discussion though.
Still. Freakin' Pavel Datsyuk.
Pavel Datsyuk is to take aways
Ryan Callahan is to blocked shots
but it's the "take away"s ability (+ Datsyuk's speed and offensive abilities) that make him so dangerous. If Callahan was able to translate his blocked shots into scoring opportunities like Datsyuk does with his take aways, it'd be a entirely different conversion. But, yeah... Selke should be referred to as the "2-way player award" instead of defensive forward award.
Tortorella has played Stepan over Anisimov on the penalty kill for much of this season. That says a lot about Stepan's defensive abilities.
Doesn't mean he's a good/great defensive player.
People often confuse being good on the penalty kill and being a good defensive player. They are actually two different things. I'm a firm believer that you can stick any player with common sense and 100% effort on the PK and often get a good result even if he doesn't have the greatest hockey sense.
And no, we have no Selke caliber forwards. Callahan is the only one that comes close but his offense isn't nearly sufficient enough to warrant a spot over Datsyuk and the like.