Optimally I'd like to find a way to have McDavid, Draisaitl, Hyman, RNH, Henrique, and Kane in the top 6, but that makes things harder further down the lineup.
Draisaitl - McDavid - Hyman
Kane - Nuge - Henrique
Holloway - McLeod - Perry
Foegele - Carrick - Brown
But that’s a slow second line. I think you spread out as much as possible and you can always shorten the bench later in games.
Multiple cup teams recently won not from one line, but being able to roll lines to wear you down, the top 6 does most of the scoring but you need to be able to sustain pressure.