I love going to Camelback for FirstTrax at 7:30 am. Last year, every trail was open and perfectly groomed, and they blew large piles of snow whenever they could. Yeah, it sucks big time once 10-11 am hits and there's 100+ people/gapers in line at the Stevenson lift, but they usually run a few slow lifts, like Bailey, which don't have any lines. I take a lunch break at 2-3 pm, and from 6-9 pm the crowds disappear and open up the whole mountain to fantastic night skiing.
I always found Camelback's terrain to be pretty fun and diverse, especially their blue runs. The 5 diamonds are kind of similar in that they're steep at the top and then level out, but Cliffhanger is still a blast.