I was at Mtn Creek yesterday getting used to the new bike. It was busy, but the line wasn't out to the parking lot.
We noticed one thing they have done was to add a "singles line" to the left. If you're there solo, you go into that line and jump into a gondola with only two people. It moved pretty quick and helps keep the up-mountain flow at maximum.
Back in the day, a race weekend at Plattekill would have the lift line all the way into the parking lot of the lodge. You were lucky to get 4 practice runs on course through the day.
I'll be at Highland next weekend (my apartment in NH is about an hour away) and I'm sure it'll be nuts. And since the only other mtn open right now is Plattekill, everyone is going to Creek. Once other mtns open, it'll thin out a bit. JDog posted he heard the day he was there was the busiest they have ever been in almost 20 years.