Guys, don't let this get ugly. No need to bait the others here about the relative abilities of Carol Channing or Marissa Jaret Winokur.
That said, a couple of things regarding Bernadette Peters. People seem surprised when she scoops and dredges into her lower register, or by that emotional choke or crack in her voice when she's belting. I've found this to be her sound for at least the last 20 years, if not more. She sounds the same way in Sunday in the Park, Song and Dance, Goodbye Girl, the Anyone Can Whistle concert and Into the Woods, whenever she is delivering an "emotional" number. Perhaps it's the aging of her voice, or a stylistic tic, but it doesn't mean she's not singing properly, or is incapable of meeting the score's demands. In Annie Get Your Gun, a generally sunnier score, I didn't notice it as much, but I sorta blocked that whole show out of my mind.
I went back and watched the "Rose's Turn" performance again, and apart from what I described above, I didn't notice any cracking from her. And I was captivated all over again by her performance. It's some of the most layered, emotional and smart singing and acting I've ever seen from her.
"Gif me the cobra jool!"