I think that in some ways, Lindholm actually has the higher absolute "ceiling". If he's with the right sort of play driving wingers, he's shown that he can be a superb complementary piece and do the yeoman's work defensively, keeping the play alive, etc. In that capacity, i think he might even still be the better choice for the few teams that have that sort of scenario to place him in.
But Bennett is the pretty easy answer here in general. He's just so much more useful in other contexts. ie. Lindholm might be the more capable 1C "filler" with the right wingers...but i think Bennett is the far more impactful player as a 2C where both of these guys are probably better suited anyway.