Have had park central and boardwalk balconies and loved both.
Park central is quieter in general and in the evening its a nice ambiance esp when there is live acoustic music.
Boardwalk is a bit more lively; potential views of the aquatic show, movies, ocean view, etc. Get to hear squeals of people going down the abyss. It’s a fun spot depending on ages of kids. Not sure I’d want to be trying to put littles down for a nap there, but if they’re past that, it’s a fun location.