Honestly "Bože Pravde" would be like a middle tier anthem like Hungary's, if it weren't for the context of the fall of Yugoslavia. That context alone makes Serbia's anthem bottom tier.

I don't have an exact ranking of bad national anthems, but I've always found Norway's anthem to be profoundly tedious and bottom tier. The only thing Norway's anthem is good for is letting me subvert the opening line by saying "No, we hate this country as it falls down", but as an anthem there's just better choices out there, and there's better anthems in the Nordic countries. Like even Denmark's "King Christian Stood By Lofty Mast", for as much as it pains me to award points to a song praising a monarch, at least that anthem is the only national anthem in the world to include the word "brain" in its lyrics.