I have been coming to Heavenly for the past +8 years, and the only times i have ever been dissapointed were when there wasn't enough snow (too early in the season, or the low snow season). Other than that, there is just no other place that can compare in California. Not only is the view from the top of Sky Chair absolutely incredible, but the sheer size of the resort is mind-blowing. It is basically two good sized resorts (Nevada and California) rolled into one. In addition to the size, the variety of runs is perfect for any skier; from easy winding green runs to average blacks (moguls come and go), and Mott and Killibrew Canyons for those expert daredevils.
They don't call this place Heavenly for nothing. A few years ago, when i was skiing with my mom, she had an experience which only further dictates my point; we had split up, and as she was riding up the chair lift, the woman sitting next to her said that she didn't like Heavenly because the snow was too soft, and the resort was too big. She apparently felt more comfortable back east, skiing the appelation mtns. where the resorts are smaller, and there is more ice. He He He. I just about died when i heard this story, but it is true. Heavenly is simply heavenly. In fact it was rated the best ski resort at least three times in a row in California in the early 2000's.
After skiing, there are a plethora of shops and resturaunts nearby which cater to a variety of styles and tastes. Just outside the gondola, there is a place called "Fire and Ice." Hands down, the best resturaunt there. A great place for a family dinner with free entertainment (to be enjoyed by the whole family), and a wonderful tahoe experience. As others have said, there are 5 big casinos just across the border in Nevada, for those looking for a little night-action. Basically this is great place to come; for skiing, and everything else.
In conclusion, if you haven't been here, make a note to come the next time you consider going skiing. You wont regret it.