Assuming both players are signing extensions, this is a case where you probably make a good argument that from a fantasy perspective Draisatl has the better value and/or would be the better player, but right now surprisingly somehow Vancouver is hot while Edmonton is in the tank. So fantasy aside in the real world Vancouver wouldn't want to mess with the room, while if in Edmonton they decide they need a big shakeup you're not getting better value than Pettersson for Draisalt.