CSE, Biochem, art, history, engineering... you can get into medical school with any major. My personal advice is that you choose a major that most interests you. Selecting a major that you are generally interested in will likely result in a higher GPA, thus increasing your chances of being accepted. I don't want to be pessimistic, but it is also wise to consider that MANY pre-medical students quickly change course and pursue other professions. Leave yourself some options; you may end up changing career paths, and it would be nice to have a plan B in place.
If I could go back in time, I would have pursued a degree in auto mechanics. I would have enjoyed the classes more than the major I chose, and it would have been a very useful skill to have. Ask yourself what you would do with each degree, if you don't go to medical school. Which degree do you think would be more interesting to you? In which program would you perform better? Is there another major that would be better suited to your interests and abilities?