I think the Dome, moreso than any other place, is hard to pin down on a list like this.
When it’s full and rocking, it’s something different than any other b-ball arena. Maybe not in measured noise level, but there’s something different about it when it’s coming from 30,000 plus vs. 10,000.
The unique setup/backdrops can be an advantage because it’s different than what players are used to in every other arena.
It can be dead, even with a big crowd. Being so far from the court/spread out, I think makes it easier for fans to just sit back like they’re watching a movie rather than making noise. You’d never have a small amount of visiting fans take over Kansas, Kentucky, UNC, Duke, etc. the way a couple thousand Bonnies did for 75% of the game last year while 15,000 SU fans were silent.
The Dome can be far and away #1, or way down the list depending on the game, opponent, crowd size, etc.