It's my favorite food.
It's my favorite song.
What's your favorite sport?
That's not my favorite topic.
What's your favorite pastime?
Who is your favorite TV star?
Winter is my favorite season.
Physics is my favorite subject.
Who's your favorite super hero?
What's your favorite kind of art?
What's your favorite summer food?
She heard him sing his favorite song.
Playing the piano is her favorite pastime.
My sister's son Jimmy is my favorite nephew.
I missed going out with her and eating at our favorite restaurant.