Well, folk song "Asian melody" doesn't have blues scale. That's the big difference. Obv modern Asian pop does contain jazzy Westernized chords but to someone who grew up on Asian pop (eg. me) there is something faintly unnatural (or rather non-instinctive) about the basic twelve-bar blues progression. I have the barrier going the other way, which I've always suspected is the real explanation for why I like so proportionately little American music.

Two Western pop songs that sound very "Asian pop":

Madonna, "Taka A Bow"
Lady Gaga, "Love Mail"

Oddly enough lots of African music (Malian folk for one) is pentatonic and sounds weirdly indistinguishable to me from Chinese folk music, allowing for instrumentation. When I listen to Amadou and Mariam I find it difficult not to start riffing lyrics in Chinese.