Pros: Fun, varied terrain; short/no lines at peak times; amazing trail/lift layout and grooming; pretty views of the mountains and desert; great value
Cons: Busy in early season, on 2-day weekends, and when the L.A. folks see a lot of snow on the hilltops; Way understaffed rental office; low elevation
Mountain High faces daunting challenges: three small areas with a few miles between them; low elevation; unreliable snowfall; a very small town at the base. But what they do within those limitations is remarkable--amazing snowmaking and grooming; fantastic lift and trail layout; a fun atmosphere; and surprisingly short lift lines most of the time. And for such a small town, Wrightwood can be charming and a lot of fun. It's also a very easy drive, with no passes to cross, no switchbacks, and great plowing/cindering. The customers and employees generally seem friendly, and it's a surprisingly international clientele, with tourists from around the world seeking (I'm guessing) to fulfill their dream of surfing and skiing on the same day.
West Resort: this is the main area, and often the only one open. It's efficient, has great runs, and the snow maintenance team really puts in the work to make it a great experience for boarders and skiers. Even on crowded days, you can generally avoid more than a minute or two in line by sticking to the upper mountain. The Bullwheel Bar & Grill has surprisingly good food and a full bar, good for replenishing after shooting some of the steeper pitches at West. Don't rent at the West Resort--the lines get out of control even on slow days. But there are great, affordable rental options in Wrightwood (Benny's is my favorite). The night skiing is fun, and Californians don't generally bring layers, so the resort empties out around 5:30 or 6:00 and you have the lifts pretty much to yourself.
East Resort: Long, challenging cruisers with an ocean view from the top! But the lower elevation means that they don't open as often or stay open as long, and the snow condition can be pretty variable. Olympic Bowl is the scariest-looking lift-served run I've seen anywhere I've been--I haven't actually tried it (and can't imagine I will), but it looks like even serious experts might face a challenge here without needing to hike.
North Resort: Reliant on natural snow, so it hasn't been open much in recent years--but it's a great spot to get away from the crowds! On a holiday weekend with fresh snow, I once had to wait behind a family boarding the quad together--but other than that, I've never seen a lift line at North.