Where do I start?
I love Patricia McBride, but wasn't overwhelmed by her "Who Cares?"
Except for "Dying Swan", while I can appreciate her authority, Uliana Lopatkina doesn't reach me in any other way.
I think Louise Nadeau was gorgeous in many, many roles, but I could not bear her acclaimed "Agon" or Aurora.
I heartily disliked Darcey Bussell's "Agon" in the Balanchine Celebration in 1993 (the one on VHS/DVD).
I like almost no film I saw of Nureyev or Fonteyn, and by the time I saw Nureyev live, I wish I didn't.
I found Baryshnikov disengaged in most of his classical roles.
I agree heartily with you re: Bussell, both in general, and particularly in her Agon pas de deux for the '93 Balanchine Celebration. While some of the US critics in particular may have been in agreement with me about Bussell in terms of her lack of acting ability and (per Kisselgoff) the tightness/lack of epaulement in her upper body technique, she seemed to receive almost universal praise when it came to her Balanchine interpretations. I think Mr. B would not have been so impressed by her Agon; this may seem nitpicky, but he would've disliked her use of hands and fingers in particular, I think - they lacked articulation and were what Mr. B might have called 'spoon hands.' In general I think that more worthy dancers at RB were overlooked during Bussell's reign, including Belinda Hatley.
Another dancer whose popularity mystifies me (much more than Bussell, actually) is Cuban prima Viengsay Valdes. While I understand that she's somewhat of a polarizing figure (some find her flashiness 'vulgar'), for me it comes down to her technique. While she can turn and balance incredibly well, these seem to be the only two tricks in her bag. Otherwise her technique seems caught in some past era and is not up to current standards for any ballet dancer, prima or otherwise -- sloppy footwork, lack of turnout, no looseness in the hips or legs, and unattractive (in my opinion) port de bras. And yet she's so beloved by the Cuban public and by a number of prominent critics worldwide. What am I missing, I wonder?