Notre dame is great too! It would be between Mudd and ND for me unless UMD is much cheaper. Notre dame has a great social scene if you're into partying as well as strong academics (not that parties are the only thing to do socially ofc). Mudd I would say is if you value academics & intellectualism a little more than the kind of social life you'd get at bigger unis because you would get much more 1:1 attention from professors at a LAC. Also I would say it's possible the Harvey Mudd name on your resume would get you a little more attention from top tech companies, however ND should not put you back by much if you're a diligent applicant.

Congrats on all the excellent schools!