I think a pretty good song from my most hated singer/band would be better. Cause if let's say, Ayu has this new song which i really really hate, i would remember that she has this bad song and i may have this mental image that she may release other songs similar to this bad song. Whereas if this most hated singer/band has this nice song that i like, i would at least remember that there is this nice song and maybe i won't hate the singer/band so much