When I think of power forwards, I think of guys like Eric Lindros, Cam Neely, Keith Tkachuk, Jarome Iginla, Shanahan, and more recently a guy like Lucic. Kadri doesn't intimidate players much imo, he is like a scrappy pest, but guys aren't scared to go in the corners against him. Power forwards are a combination of skill, brute force and a desire for occasional pugilism imo. There are exceptions, like Ovie, who can steamroll guys, but doesn't seem to do it that often and isn't big on fighting. So I don't know if you can really classify Ovie as a power forward, I don't watch him enough to know.