I'm a bit puzzled by your inclusion of steals. If in fact that stat is so important, Phee is slightly ahead of A'ja on steals per game (
3rd and 4th, not 2nd). Funny you'd choose to include steals but not assists, or turnovers, or A/TO ratio... but what do I know.
Also, not sure rebounds and blocks are fair apples to apples comparators since A'ja is a true 5 and Phee is not.
I'm not in the camp that says FT% or 50-40-90 should decide it. I have a bigger issue with the fact that for half a season the Aces and A'ja were both unremarkable and underachieving. But no disputing that she and her team have turned it around and are on fire lately, and recency counts for a lot in these things. Also no doubt the fact that Phee missed more games than A'ja works against her as well.