China /trv/lers, I need you.

I'm very interested in moving to China to study Mandarin but... I don't want to deal with the pollution. I've been in Taipei for almost 2 years now and I've had enough of the terrible air pollution, the constant dark grime that forms on all the buildings (even the recently built ones), and the depressing lack of sunlight/decent weather.

Are there any major Chinese cities that have decent weather (sunny days, not a furnace, etc.) and don't look like polluted third world shitholes? Or does that pretty much limit me to rural living?

tl;dr: Recommend some beautiful Chinese cities