1.which city in china is the most beautiful weather?

I think the weather of Kunming is most comfortable and beautiful.
再问： 2.which city in china{ has } the most beautiful weather?1.which city in china{ is} the most beautiful weather？两句话有什么区别？
再答： 第一句话是错的，翻译为：中国哪个城市是最好的天气？城市怎么能是天气呢。