Oh no, no way! You are NOT making me choose!
I LOVE both styles of Andrea's music. He is the BEST, no matter what he does. How can one be better than the other when he is the BEST at both?
There are songs and albums for every mood. Some days are "pop" days, some days are opera days and some days are ANDREA days! On those days, anything goes.
I agree that knowing what is called "pop" music in the USA makes it seem awfully odd to refer to Andrea's music that isn't opera as "pop" but that's what they call it! But...considering "pop" is an abbreviation for "popular", I guess it IS appropriate after all.
Andrea is most definitely POPular, no matter WHAT he sings.