"but I will say blended accents are so delicious to my ear"

Yes, they sound unique, hence I'm interested in the question of the degree to which they can be decomposed into their individual elements in the ears of linguistically sensitive listeners. Insofar as they can't - which seems to be the case here, at least as far as you are concerned - they can be said to add an authentically novel quality to the phonetic repertoire of human speech. Also, I have an impression that, unsurprisingly, they tend to be particularly clear and crisp, since they are used by individuals who consciously want to be understood. As a result, the phonetic features of their constitutive languages tend to be articulated very distinctly, which is a pleasure to listen to.