Hardest engineering major to get into?

Please consider all branches of engineering and make a list by your thoughts.

What does the question even mean?

Chemical Engineering!

At my school, BME has the highest GPA requirement for entry-to-major. But that’s more a function of how popular it currently is.

It really depends on the school. Where I go Chemical has the reputation of being the “hardest major” (I know some people who picked it solely because it was the hardest, and are struggling because they don’t actually like the content), but I wouldn’t say it’s any more difficult to be accepted into than the others.

I’m still waiting to hear back about what the question means because these answers may not even be to the right question (and for that matter, are answering an unanswerable question anyway).