You have to think in terms of balance, three play makers on a line can be frustrating, especially when Voracek ends up the one with the shot.
Ideally, your top three lines will be balanced, one "mucker," one playmaker and one sniper/scorer.
That doesn't mean the sniper can't pass or the playmaker can't shoot, rather, their defined by their best attribute.
By mucker, I mean the guy who go gets the puck in the corner, goes to the net and does the dirty work to set up plays.
Scorers tend to be tweeners, they're muckers around the net and shooters with a good but not great shot.
You know you have a sniper when he comes down the wing and 20' from the net everyone holds their breath waiting for the shot because he's got the quick release and accuracy to put the puck past the goaltender in tight spots (example, upper right hand corner).
Playmakers: Giroux, Voracek, Frost
Muckers: Lindblom, Couts, Farabee (when he grows up), NAK
Snipers: TK
Scorers: JVR, Hayes, Laughton
Laczynski and Cates have mucker potential
Allison has scorer potential
Brink has playmaker potential (with a possible sniper shot)
The organization lacks top shooters, guys who can be deadly from 15-20' and force the defense to account for them.
You want a few guys with the "killer wrist shot," that force the goalie to focus on them whenever they're on the perimeter of the trapezoid (faceoff circles to goal posts) and not just in close.
Hayes and JVR score by getting inside the trapezoid but neither has that great wrist shot that scares goalies. And neither is a true PF like Simmonds.
On the other hand, you don't break the bank for a shooter without other redeeming features, shooting alone is not valuable enough to pay top dollar - shooting combined with skating (keeps the defense on their toes) or part of a scorer's package (can score from 20' in), or part of a balanced skill set has far more value.