From my experience, at our college, the engineers were always studying. Why would you want to compete with the cream of the crop academically? Its like this: would you rather race a high school sprinter or Usain Bolt? Even if you are faster than Bolt, it would behoove you to beat the sure thing.
I can't resist a track analogy. If you look at college as a competition, that is what you'll get. But I would argue that you're setting yourself up for failure and development of some pretty unhealthy social skills in this is your outlook.
If you were training for the Olympics, wouldn't you rather have Usain Bolt as a training partner? (Daniel Bailey who ran 9.91 when he trained with Bolt in 2009). Sure it may look great to run against a bunch of high schoolers and blow them away with a 10.4, but at the end of the day, you're no better for it. And when your patient's need someone who can crack 10 seconds to figure out why their previously healthy 2 year old daughter is now in status epilepticus, you'll be frustrated with the degree you need to push to even get close.
What I'm trying to get at is this
1) Getting into medical school is far from an end all, be all. It is a step towards a career. If you write it as your ultimate goal, you are setting yourself up to be 32, have a checklist of 4 items filled out and realize you've missed the past 14+ years of your life.
2) You could easily change your mind and decide you want to do something besides medicine (EE would be a fine option). If you try to take one for the team here and pick a major you don't like just to get higher grades, you could end up
a) unfulfilled, not getting into medical school, and stuck with a career path you don't enjoy.
b) getting into medical school and being resentful that you've given up something you love for your patients (which is a bad situation as you tend to exhibit splitting on them whenever they are noncompliant).
While your grades MAY be lower in EE, realize that adcoms know the difficulty of your courses and factor this in (as has been said). If you must think about it only in terms of getting in to medical school, when I interview applicants I want to see that they're passionate about what they're doing- not just slogging through it to the next step. If you think you'll like EE, please try it out.
Plus, nearly half of my class (top 20 school) were engineers in undergrad. It's a way of thinking about problems that carries through well into life in general in my opinion.