Having spent a month one week in Wuhan all I can say is that it was one of the most polluted cities I've ever seen. There was little to do tourist-wise and only the fact that my husband and I were there to adopt our daughter made it even somewhat palatable. Beijing is interesting, Hong Kong has great shopping, Chengdu has pandas, Guangzhou has the hustle and bustle, Xian has the tomb of the First Emperor; Wuhan has . . . well, it has drivers who use their horns a lot.