Depends what we mean by better. If you prefer rock music to Bach then great. Enjoy! I love popular music and classical for different reasons

But if we're talking skill, intellectual depth, craft, then there are objective criteria. Take Bach, his music is like a masterpiece of engineering with its unparalleled compositional complexity and craftsmanship. His mastery of counterpoint being but one example. His work represents a pinnacle of musical architecture, establishing foundational principles that profoundly influenced centuries of Western music.

That just doesn't compare to most pop music does it?