My son was admitted to both but went to Alabama - in part because of the dorms as you mentioned and maybe being closer to home.
He’s a MechE who works at an aero company. He’s a sample of one but had 20 interviews last fall and 5 offers - two of which were aero companies - General Dynamics and the one he works for. He works with kids from Michigan, Purdue, Washington, Case Western etc. but they also hire W Michigan, Akron, Utah, etc. So I wouldn’t worry about prestige - because companies are looking for folks, often from ABET accredited schools - but they are not studying the rankings like people who are applying to college do.
I can’t tell you if CU is less rigorous than Purdue. I would not make that assumption. Engineering will be rigorous anywhere and while some companies may have favorites, i’d say the vast majority are looking for ABET accredited grads - and the where doesn’t matter. Here’s a little snippet from Cornell - because they post the “how” kids find jobs. They registered no aero folks but the top two ways they found jobs was linkedin and facebook #1 and Internet postings #2. Think indeed. Because my son didn’t like who came to his career fair, etc. it’s how he did his entire search and you saw his results above - so I would say your future endeavors (if work related) - you’ll have great success from either if you have the drive and fortitude to do so (and the economy participates - i.e. stays strong).
You might look at program size - Purdue is large. I’m not sure about CU. Obviously CU has aero adjacent jobs - lots of jobs in the Denver area. We know from @momofboiler1 that Purdue has a very large career fair.
Any school is worth it if it’s affordable and right for you. Rank isn’t necessarily the reason to attend one excellent school over another.
Taking away the prestige angle - which feels right to you? I know CU gives you what you want to study - but does it feel right over Purdue overall?
if it does, than you should choose it and not look back.
If you prefer Purdue, you should have options - even if not in at Aero, MechE is close. But they note this on their website so this should be encouraging: For students transitioning to their major in Fall 2022, 96.7% of FYE students received their first choice major. Over 90% of FYE students have received their first choice major in each of the last five years.
So if Purdue feels right to you, I wouldn’t hesitate to select it (assuming affordable for your family).
Two outstanding choices and both are reasonable decsions.
Best of luck.