Duel of the Fates is more of an epic, but in terms of being "catchy," I give this to the theme from Book of Boba Fett.

But we can agree that they are both earworming

FETT! Da da da da, da dadada da da FETT!

Every time I start hearing TBoBF tune in my head, it suddenly gets interrupted by "Like a Bantha"... and then I lose the tune.

Duel of the Fates is a classic but the Book of Boba Fett theme gets stuck in my head and I love it.

I personally like Duel of the Fates more. Plus there are a lot of good remixes of the song

But I don't mind The Book of Boba Fett theme