<~~~engineering graduate with a minor in biology trying to get into medical school.
Keep in mind that you will have to take all the pre-requisits required for medical schools either way. Those classes on top of Engineering could lead to summer school or even an extra semester, so be careful.
Keep in mind there are plenty of places that hire chemists. Sure, engineering will give you a better "back up plan", aka a higher starting salary, but your gonna have to work harder for it.
Engineering majors typically have multiple pages of hand written homework every night on engineering paper using rulers to make sure you have straight lines. (think about the lady from happy gilmore who complains of her fingers hurting) Engineering classes often have perfect bell curves centered around a C average, and are smaller classes (Very hard to get in the top %). Also, you will have to spend much of yout time as an undergraduate doing engineering work which will not be related to the medical field.
I recall comparing my Bio major classes such as Biochemistry, and Cell Biology to my engineering classes like Thermodynamics (Engineering Thermo) and Dynamics. It was almost a joke how easy it was to get an A or B in the Bio classes due to a very thick curve. In contrast, I can remember the thermo teacher telling us "I will fail every last one of you, and if you dont like it, go talk to my boss." (This was right after our 2nd exam where the class average was somewhere in the 40's) and the dynamics instructor passing an exam back and telling us no one made an A because you all did not work hard enough.
Bottom line: The engineering major is more difficult to make the grades in. It's not impossible though (I did very well in the GPA field). It will prepare you for medical school better in my opinion because it makes you work harder as an undergraduate. You will go into medical school with a solid foundation of busting your balls. You will better know what its like to have no life.
The dean of my engineering college told me that the students who go to medical school from engineering typically go into cardiology or orthopedics. So its something to consider.
Are you really gonna take the easy way out because its easier?