I just got done listening to both of those as I've never heard either one before. I'll be honest, I don't think either were that bad for what they were. I think Stairway was actually done fairly well without turning it into a pop tune. Again, you have to consider the source of the remake. As for Whole Lotta Love, I was pleasantly surprised how she was able to transfer it into a pop tune without straying way off the map in trying to "make it her own" as so many people try to do and utterly fail.
I can definitely think of worse remakes. So, I'll just buy this round and say thanks for showing me two that I'd never seen/heard before: