Don't go to Mountain Creek on weekends. Just don't. It's a zoo. On a lesson you can skip lines, but it's still a zoo.
To be frank, all the mountain "close to" NYC are zoos on weekends.
I taught for a few seasons at Thunder Ridge. Let me tell you, the rental queue stretches all the way out the building on weekends. My students missed their assigned class by an hour because that's how long the rental queue took! The magic carpet? Pact full of toddlers who topple over like peas out of a jar. As an instructor, I had to fight over other flat terrain to do instructions against other instruction groups. I have to have eyes on the back of my head to watch out for little unguided missiles knocking my students over! (never-evers take ages to get back up, best not to have them fall over not of their own fault).
All that would escape notice by children learners. But adult learners? It's a bit intimidating. They worry about crashing into others, or being crashed into. It's not ideal.
There're no place to sit in the lodge. The line for food is equally long as the rental queue... the list of crowding issues goes on...
But, it's not unique to Thunder Ridge. Take Belleayre, I don't think it's that much better either! It's got a lot of terrain. But boy, there're also a lot more people!!! I only go there on week days. Weekends are for Plattekill, or a longer drive further north.
Yes, I've been to Mountain Creek on a snow day (I didn't realize all NJ school was close due to snow). God, the line to purchase ticket took nearly an hour, because they decided to sell lessons on that same line!
Don't even get me started on Hunter!
My experience? All mountains near NYC are bad on weekends. But, never ever learners probably won't notice the different either.