Mac is definitely my favorite human character. He always seems so cool to me, plus he's very smart, and I admire that quality in people. It's rare to find a kid who's cool, calm and collected like Mac is
My second choice if I had it would be Madame Foster. I mean really, how could you not love a possibly semi-psychotic old woman like that
Then I would choose Frankie. She is awesome, just not as awesome as Mac or her grandmother in my opinion