Haha let's join in the BO debate.
All I can say is my wife is Chinese and I am a gweilo, and there is no competition - My socks at the end of a summer's day are MUCH worse than hers Bordering on toxic. After playing sport? Might as well burn them and use them as fuel.
Sorry to my fellow caucasians for ruining the sweet smelling image you're building.
Disclaimer: I do not believe this is apparent on the MTR, due to a marvellous contraption known as shoes, and another known as deodorant.