Here's my more comprehensive list of artists I just don't get:
Elton John
Paul McCartney & Wings
Van Halen
Yes
Electric Light Orchestra
Doobie Brothers
U2
Mariah Carey
Jennifer Lopez
Agree with your last three Fox, but I like Elton John, Wings, Yes, VH, ELO and the Doobies. If anything I think the Doobies are vastly underrated especially the pre McDonald era of the band.
Guns & Roses gets my vote as very overrated, and I despise Axel Rose with a passion.