It would, obviously, depend on who was running against her.
She wouldn’t be my first choice, mainly due to inexperience. She has a law degree since 1988, but hasn’t worked in the legal field since 1993. She is a good First Lady, and a good mascot for the country. She says good things about the right subjects and doesn’t project much negativity at all (no matter how much crap people sling at her), but that’s really not what I think of when I think of a president.