I don't have as many naval battles under my belt as others. But alright.
Anything boarding would be coming from the exposed decks, and if it's coming from below we're looking at an evac situation.
So while we should focus heavy hitters up high, say above 6. Maybe keep non-combatants to the School or between 4 and 6. Then, sparser lower down, but, keep some tech savvy people down on 1 and 2. If we have engine or electrical problems, they'll be closer to engine or electrical, and if we can't get access directly, we can either destroy a floor or, see if Kitty or a teleporter could bypass.
Is how I would set up. I'd see if Sif and Laura are willing to move up some. I'm not as familiar with our tech experts here.