Her "buggie" that sings on her carseat, or
Sitting in her chair &/or a water bottle.
Some of her (my) other favorite things are:
and of course, cuddling with mommy.
She is so dang cute I can't stand it. If I could I would hold her all day long and never get anything done. I'd say she was my favorite thing but that spot is reserved for naptime. Nothing beats peace and quiet.