Quick, can you think of any classic rock band in history who has more unattractive people in it than the Rolling Stones. Watch any number of classic rock videos and I defy you to find any one classic rock band with members as ugly as Mick Jagger and Keith Richards.
It's a good thing they are tremendously talented; otherwise, the world might never have been exposed to such classic rock songs as "Satisfaction", "Honky Tonk Women" and "Jumpin' Jack Flash". Obviously, the rock world does not put great emphasis on looks.
I'm more of an Elvis fan myself and in a list of the top 100 classic rock songs (or any other songs), he reigns supreme. However, having a number of younger brothers and sisters (and an older brother who never quite grew up), I have been exposed to classic rocks songs from various classic rock bands for over five decades. I can listen to the Stones, as long as I don't have to look at them.