The two RH shooters are the far more "play driving" type guys imo. So them, pretty comfortably.
Smyth was fantastic at what he did, but never really struck me as a pure "play driver". Same for Pronger, who was a dominant physical defenceman at both ends of the ice...but i still don't really remember him as a big transition beast. He was more of a threat at either end of the ice than in the middle of it.
Where Ovechkin has shown he's got an ability to generate a lot of his own offense, if he has to...and just supplement it with PP tee offs. And Byfuglien at his absolute peak however brief, was a real wildcard. He could play a physical role, a rover role, a transition role, or just be a generally gigantic human being role.