No hate, but there are a few soundtracks I don't care about in RPGs I like/love. They'll have one or two great tracks but the rest will just be forgettable.

Diablo (any of them), pretty much any Compile Heart game (Neptunia, Fairy Fencer F)

Also, a special nod to Zelda: Breath of the Wild (I don't consider it an RPG but know many do so I figured I'd mention it) for having the worst generic combat music ever, which drags the OST down five notches.