I'd rather see Hall with Draisaitl and RNH with Mcdavid.
There are many more reasons to avoid Hall than have him. He is too expensive. He is weak defensively. He may be a locker room cancer. We need a third line center/line driver far more.
But even more than those is the chemistry factor and where he plays in the lineup.
We know Hall has decent chemistry with Nuge and Draisaitl. But we also KNOW Hall is brutal with McDavid. Anyone with a decent memory should be able to recall how terrible those two were together. It was oil and water. It was tried to death and simply did not work. Yakupov was significantly better than Hall with McDavid... Yakupov.
Nuge and Draisaitl have far more chemistry than Nuge/Draisaitl and Hall. Right now splitting the DRY line would be monumentally stupid. Putting McDavid and Hall together foolish/definition of insanity. It's been done and is very unlikely to work.
That leaves Hall on a line with Kassian (lol) and Haas. Maybe they could bring Gagner back to center and it could be the "accidentally" smashed each other in the face with a stick line.
Or they go for the rare as Hens teeth 3 offensive lines.
McDavid Kassian +?
Draisaitl Yama +?
Nuge Hall +?
Imo Nuge is the center that best worked with Hall by far.
With our cap restrictions the rest of the forward lineup would be league min guys.