<p>I can tell you one thing from the few people I know who are doing the joint majors - there is no time to take ‘free’ electives since your schedule is set up for the next 4 years. In fact, you are expected to take at least 4 technical classes every semester so you can graduate in time which is a ton of work. If you want to do one of the joint majors, you must be determined to do it and definitely pick the joint major you want.</p>
<p>There is no pro/con for each; it comes down to do you want to do it and do you have the skills and time management to do it.</p>