I saw Roger in Evita in London, and she was fascinating on stage. I can see why people don't like her on the recording, but she was a firecracker on stage, and Eva full of energy and determination in the form of this tiny, tiny person (I'm barely over 5'1" and she is shorter than me), using sheer force of will to get what she wanted. Yes, sometimes her voice had the intensity and unpleasantness of a dentist's drill, but somehow it worked, and her dancing is stunning.
What didn't work was, well, the concept of the revival. I love Philip Quast but he made Peron sympathetically angsty, as he does, and Matt Rawle's "Everyman Che" had no bite, so the show was really unbalanced and sort of became All About Evita. It was fine in one way because Roger has "star quality," but it became almost hero-worshipping of the character and that made the show really unbalanced.
'"Contrairiwise," continued Tweedledee, "if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic."'
~Lewis Carroll