I have heard / read many times that there was a rivalry between David Coverdale and Robert Plant, peaking around the time of Coverdale bleaching his hair blond. Something about a model they both liked too. Then Jimmy Page did songs with Coverdale... I was not around at the time, does anyone know if this is all just (rather enjoyable) myth and media fabrication?
I suspect Plant would not have considered Coverdale anywhere near good enough to be a rival. However, when Rolf Harris did "Stairway to Heaven"* and someone asked Plant if he'd heard it, he said:
Yes, it's very good. He should join Whitesnake
*I think the universe agreed to forget.