I’ve heard more BP songs than I have SNSD. Considering I’ve mainly heard SNSD titles they should be at an advantage as they’re meant to be the catchier tracks
Well, BP's songs have the advantage of recency. SNSD's biggest hits are form around 2010 and they were written and composed in light of what was popular back then. Therefore, if you like more recent style of music you will, of course, prefer BP over SNSD.