Rocks Resort in particular is great for families. It's so well laid out, everything has been thought out with convenience in mind. Great on mountain dining options too.
The Laax app is brilliant, earn points and badges, something to challenge yourself - and you can spend points on wine! Win-win. We're a family of skiers with two children 12 & 9 and we've been twice this season. Great resort close to Zurich airport. Gets busy with locals on Saturdays but not many downsides otherwise.