Agree with the post above. These are all great schools.
I would add that the style of school/teaching/support may be very important. Small BS/MS schools that don’t employ TA’s to teach likely give more personalize attention (if you go after it) and may allow you to do research sooner since they don’t have tons of PhD’s in the labs. Large schools = large resources = large alumni bases so the opportunities you do get might be part of something bigger. But thats not a hard fast rule. Other things to consider are the curricula if you are Engineering but undecided. Some schools have a common first semester or freshman year which helps pick a specific major. For example, Bucknell has ENG100:
http://www.bucknell.edu/academics/engineering-college-of/special-engineering-programs/engr-100-exploring-engineering.html
Sure, each one you mention has a particular area where they are well known (UDel CHemE, UMD EE, etc.) but for undergrads seeking jobs or PhD’s seeking roles as generalists, often its ‘the best engineer’ not ‘the best school’ that wins the job. For PhD’s very focused on a certain sub-discipline like catalysis, biomolecules, etc., the opposite may be true - the school may make more of a difference - perhaps even the particular advisor/lab, but not at BS/MS levels.
I work in a large department of engineers and every school on your list is represented with multiple people. Going back down the list of our hires for the last few decades there have to be at least 25-50 additional schools - MIT, Princeton, Columbia, Ga Tech, PSU, WPI, RPI, Purdue, IIT, UI-UC, UPR, CMU, NCSt, Vandy, Rutgers, Michigan, OSU, Missouri, etc. - the list goes on. I have personally interviewed grads from top/Ivy schools that were not qualified and state schools kids that knocked it out of the park. And vice versa. IMHO, it’s the person and what they did with their time at the school over the school reputation, for BS/MS.
Go with what you can afford and where you feel you fit in best, but then pursue every opportunity you can manage regardless of which school you choose.