I would suggest you major in something you're truly interested in, science or not, as you'll almost surely do better in classes that interest you. Also consider that--if you are interested in a non-science field--your undergraduate years may be the last time you have the opportunity to truly explore that area in depth.
My (non-science) major has been a real talking point in interviews, and I think has made me stand out a bit amongst all the other chem and bio people. When I was in college, it was refreshing to focus on liberal artsy material, and to meet liberal artsy people, in between all the labs and intense competition. I also found it valuable to broaden my horizons by taking classes that provided a different outlook on the world and encouraged a different type of thinking.
Regardless, if you are passionate about what you study, and earn strong marks, you'll get in regardless of your major. Whew--a long response--but I hope that helps somewhat. 🙂