Are there any hidden pitfalls that a high school senior should know about before choosing to attend the U of A? I'm currently picking between Arizona, Washington, and Washington State.

At UW, every major worth doing is super competitive and they over admit leading to many people doing 2 years and then transferring due to getting rejected from their majors?

Are there any programs, applications, etc, that I should factor into my decision? So far, I have heard that dining is not great on campus, housing is hard to find, and the math department isn't so great. Is there anything else that I should know that the university wouldn't tell me?