Art Major

I'm thinking of applying for a double major, one in science, the other in art. My sister says it will look better for Med school. I mean, I haven't heard of anyone doing this, and I know med school doesn't care about the major. The faculty of art and science however, could be an interesting thing about me that may make me stand out from all those others applying for med school.

Question is, a major in the arts of psychology or religion? Or would a minor seem less significant?

I've already taken three psych courses and two religion courses. That's another reason why I'm thinking about this.

Any ideas or suggestions? Comment below,
M.D.