Betty had to WORK to get that dance R166, whereas Judy could do much more as a dancer (and a singer and an actress). That dance Betty does doesn't even have a double turn in it and the dress is doing a lot.
I'm a BH fan of her best work, but I don't care for her in ANNIE at all. She did all the things the role of Annie Oakley requires well, at some point...but in other performances, in other movies. She should be much better in a film as important as AGYG. But at that point, the production was so fraught and over budget the orders were to get it done. Hutton did all her prerecording in two days, and Sidney clearly chose to just point and shoot a lot of the time, often with the camera just nailed to the ground panning side to side. Betty Hutton reported to the studio September 26, Annie closed production December 16, 1949 after 46 days of shooting, four and a half days ahead of schedule (for the Hutton version). So all done in under 3 months.
All Sidney's other MGM musicals seem to have more care taken with the direction. Later, he would do some terrible musicals like BYE BYE BIRDIE and the overlong HALF A SIXPENCE. Oddly, he had gotten through HARVEY GIRLS with Judy; maybe she could have made it through Annie had it been Sidney's picture all along. There's no doubt in my mind she would have eventually gotten there if Charles Walters had been the first director, and she'd had a little rest. Walters certainly wouldn't have pushed Keel's horse to the point where an accident happened.
One of her unofficial nicknames was Benzedrine Betty. That explains a lot.
She says in the Osborne interview that she and Judy got to be friends (yet again, we see how other performers absolutely loved Judy and thought of her as a friend) late at night when they both were doing shows in Vegas in the 50s after the studio system had begun to really crumble.
Timing is everything: at the moment Betty walked out on her contract, the studios still had enough power to ruin a career. They made an example of Betty. That walkout, plus her being difficult to work with, plus her last film being a flop, plus her talent showing signs of wear from her personal life, plus getting older... well, it's no wonder it came crashing down. But good God, what a crash. 1950, Annie Get Your Gun, top billing in the #3 movie at the box office that year, and the top movie with a female-driven story. 1952, Greatest Show on Earth, again top billing, in the #1 film at the box office AND the Best Picture winner, Somebody Loves Me the same year, and boom...suddenly she flops big time on tv in '54 with Satins and Spurs, her tv series flops a little later. The descent was rapid.
What chills me in that Osborne interview is when he asks an innocuous question like "when did you first start to sing?" Hutton's answer is something like "My first memory is realizing that when I started to sing [at her mom's illegal speakeasy] it would make the men stop beating her." Betty's memoir shows that you shouldn't take her word as gospel, but if that story has even a grain of truth in it, it's no wonder she grew up damaged and needy.