I like the idea of lines 1A, 1B, 1C (or possibly 2A, 2B, 2C depending on how you look at it).
At the end of the season we had
Benson - Kulich - Tage
JJP - McLeod - Quinn
Zucker - Krebs - Tuch
I think all those lines could be a top scoring line... though whichever one Tage is on is probably going to be the top, top scoring line. My point is that rather than having one line that is clearly the best, balance the skill mix (and to a lesser extent the skill level) to get three lines that an opponent can't contain (maybe one, maybe even two, but not all three).
To that end, Benson is the forechecker, the pot stirrer, the physical pest on that line. Out of the other two, I think I'd swap McLeod and Krebs so that on the JJP line, Krebs is that pot stirrer, and then on the other line, Tuch is (although he's more of just a big physical presence than a pot stirrer type).
If a coach wanted to balance the top three lines, then yeah, Benson is a top line guy with a specialized role in that line. It matters not if he doesn't score a ton, as long as he's disrupting the opposition defense and enabling the his linemates to score.