<p>I am a future student looking to major in either chemical, biomedical, aerospace, or nuclear engineering and was wondering which one is most in demand. I do not want to major in industrial, mechanical, civil, or electrical engineering even though I know these are the most in demand. Also I would like to know which are the hardest/easiest ones to major in and which has the best job outlook for the future out of the majors I mentioned earlier. </p>