I think when you're trying to make the best player possible and taking from another player's attributes, the first thing you'd have to look for is longevity. There are plenty of players that are already retired that have outstanding longevity but for current ones you would have to go with Mats Marner. He hasn't been around the longest, but I think the consistency of staying near the top of the league in scoring while going deeper into regression is really something every player should try to accomplish. Now as for being (or at least trying to be) a pure goal scorer, I have to go with my own teammate in Kriss Darzins. He is WAY past his prime, but still is able to fill the net with goals being so far deep into regression and creeping towards retirement. Finally, I think defensive prowess is still important to all-offense built players, which is why I'd take Walton Stromberg's two-way game as well.