If I´m completely unselfish, and I don´t take into consideration other people, I would pick just to do all my chores at the snap of a finger.
If I count in other people, I guess I would like magical powers aimed towards beeing the best on my field, like learning super fast, not needing to sleep too much (yeah, it´s a magical power imo), and beeing able to perform much more than I do now.
Other things that cross my mind are, for example, beeing very flexible with my body…
Growing up my town had a minister of the church who was also an alcoholic. Quite harshly we used to call him the exorcist because spirits would disappear in his presence