Snoqualmie has been operating for over 70 years which just says it's worth going to. It's the only area in Washington to be less than an hour from the Seattle Airport and can be reached by interstate 90 all the way. The area is located at about 3000' elevation which gives it heavy snow but makes a good base and rocks are rarely found during the season on trails.
Summit West boasts of easy beginner terrain which is why many of the ski schools are located there and is the best place to learn in the state because of its accessablity and the price is so low.
Summit Central has about everything a skier/rider could want, including, a top to bottom terrain park with a 450' long superpipe and over 60 jibs! For those who enjoy the quietness of the sport, there is Silver Fir. Looked down on by many because it is served by a slow triple instead of a newer faster lift. This makes the area less crowded and the snow is good all day.
Summit East is the hidden gem of Snoqualmie with many wide well groomed trails and the most consistent fall line face run. This area is empty because no one likes the two double chairs that serve it.
One ticket pays for all Summit areas and Alpental.
The bad part is: I have only met three friendly employees and people smoke on the lifts and lift lines. The lift lines can get up to 30 minutes for a two minute run down. I would recomend going to Summit East on a Weekend or going mid week.