API: various .value_counts() result in different names / indices
- [ ] closes #49497 (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

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screenshot of whatsnewnote:

![image](https://user-images.githubusercontent.com/33491632/204052033-a7b16b21-7f47-4ae1-a942-90895869d214.png)

Good point on `rename`, thanks, sorry for having missed that - have updated gentle ping 😄 do we still want to make this change? cheers - @jbrockmendel any further comments? thanks for your reviews, much appreciated!

merging then, before more conflicts come in