What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

Update. Some examples:

1. what's your favourite actor?

2. what's your favourite composer?

3. what's your favorite singer?

What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

Update. Some examples:

1. what's your favourite actor?

2. what's your favourite composer?

3. what's your favorite singer?

Update 2. More examples:

1. what's your favorite president?

2. what's your favorite historical figure?

I've added the two examples just to show that such usage is not a single phenomenon.

What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

Update. Some examples:

1. what's your favourite actor?

2. https://www.youtube.com/watch?v=mhf2YBqL3WA

3. https://www.proprofs.com/quiz-school/story.php?title=what-is-your-favorite-singer

What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

Update. Some examples:

1. what's your favourite actor?

2. what's your favourite composer?

3. what's your favorite singer?

What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

What's your favorite actor?

Is such a formulation ("what", not "who") acceptable in AmE? Some source says that it is acceptable and even fine.

Update. Some examples:

1. what's your favourite actor?

2. https://www.youtube.com/watch?v=mhf2YBqL3WA

3. https://www.proprofs.com/quiz-school/story.php?title=what-is-your-favorite-singer