Which region is a better place to ski?
*List pros and cons of each!*
I suppose it's what you want. Tahoe is a ski destination. Tourists, hotels, casinos, and ski resorts all focused on vacationers.
In Washington there are ski areas, mountains, and normal, everyday cities and towns. No resorty resorts, but world class terrain and snowfall. Mostly you drive to the ski area for the day and then drive home, usually within about 1.5 hours or less from your home. Just north we have British Columbia and the great variety of ski options available there within a three to six hour drive, depending. To the east we have Idaho, Montana, and Alberta. And just south we have Mt. Hood and Mt. Bachelor. OK neighbors.
I've never skied in Tahoe
I find that the snow quality is similar, Tahoe is more crowded, there is less vertical rise among the resorts in Tahoe, the storm days are more spread apart in Tahoe, (more sunny days), but the only reason I choose to live near Tahoe is I can comfortably kite surf all winter in the ocean a four hour drive away, of course the four hour drive is all crowded freeway and sucks, but that's California.