I majored in chemical engineering. I think that's in the top, 'realism' wise, if we are talking about realism as job opportunities.

On the flip-side, a broad education on as many subjects as possible is the key to a balanced mind. Don't lament the fact that kids are majoring in the things they love, lament the fact that there's a disconnect between what we want to do and what we have to do.\
I will lament that fact, because you don't need to go to college to study and get a balanced mind. I'll lament the fact that they major in what they love, but then expect that they are entitled to a job because of that degree, even though doing what they love does not offer enough to the world for anyone to offer them a job.

CR