Bobby Plant is reasonably gracious about it ...
I never thought Steven Tyler sounded anything like Plant - it's an image young Areosmith got tagged on them "
look like Stones, sound like Zep", but they never seemed to me like that, I thought they looked like a less crass version of The New York Dolls - with the added benefit of knowing how to play their instruments.
And their musical style was pretty much self-standing though I know that they were all Yardbirds buffs.