Cam is slightly more versatile.
He can skate and he loves to hit...and he's a good fighter, maybe not as good as King, but the intangibles give Cam the edge.
The only time King fires up the crowd is when he fights. Cam fires up the crowd just by being on the ice.
I agree. King is definitely the better fighter, but how important is that in today's NHL? I don't think the fear of fighting King really prevents guys from going after our star players anymore. Cam will fight anybody (even though he can't hang with the top heavyweights like King can), plus he provides more hitting, agitation, and crowd response. I give the edge to Cam too.
Besides, how can you cut our new shootout specialist??
Although, the 90s Blues fan in me would love to see Cam and King on a line together destroying people, I don't know that it would give us the best chance to win. That would be loads of fun to watch though.