Gao's PB of 176 from 4CC this year is STILL 10 points higher than Zawadzki's however, and she had a costly fall in that program on a 3lz that was meant to be in combination (she didn't add the combo in elsewhere) and also stumbled out of her 3 jump combo, even so, that would have had her 9th at Worlds, a fraction of a point behind Osmond in 8th. Plus to put it in perspective, people who think Alissa was so amazing during the 10-11 season need to realize that her scores were actually quite similar to Gao and not all that high. She won the GPF with 180 points and was 5th at Worlds with 182. Those were the best skated competitions of her career and she's still only around 5 points higher than Gao's PB which she earned with 2 errors that easily cost her 5 points if not more. Granted, Czisny wasn't totally clean at those events but they were the cleanest we've seen from her in a long time so I doubt she'd be doing better now coming off 2 hip surgeries. Hicks has a PB of 153 internationally, so even those who are saying Gao is not strong enough to have earned being placed ahead of Wagner or Gold at Nationals, clearly her international scores from this past season are indication that she should be able to place ahead of Zawadzki and Hicks when skating well.
Mirai has a high PB score but that's from a long time ago when she had a different coach, better programs, and hadn't grown into her adult figure yet. I don't know if it's feasible for her to start skating like she was 3 or 4 years ago just considering how much has changed since then. She's still very talented, but her best score from this past season was 176, a few tenths of a point higher than Christina, and given she got that with a number of URs, it's promising and indicative that she can do better, but for people that are saying Gao's scores aren't that high, that's really only in comparison to Wagner and Gold, she's right in the mix, and arguably at the top of it, international score-wise with the other ladies in contention for the 3rd spot on the Olympic team.