i have seen a lot of hot chinese ppl around me and the majority of ppl i know and see are shanghainese ppl whose average hottness rate is really high since im shanghainese myself.
even the 'average' chinese chick is really hot if you take into account no plastic surgery etc. and many are really tall. the ones in shanghai are hotter than here.
Also, since china is really diverse you are going to find 'korean looking', 'japanese looking', south east asian looking people so you get the best of everything.