Peter Belfast
"If you find your favourite songs too familiar to analyse then listen to Radio 1's Top 40 Singles chart show and analyse these songs instead. After all, each one is a successful song."
And with the right marketing, any song can be a hit!
Ben "the Baker" / Manchester
Sound advice, ha. I'd add that sometimes the further you go back the more will be revealed, most good music is either recycled and modified or combined with other genres, but the hook remains the same.