It is more about the standard you are playing to. You will encounter various degrees of competitiveness depending On the school and program. To consider are you for bach mus music in performance? A bach of education ? A bach of arts in perdance?
You are looking to show the panel you have the potential to successfully handle the load of their program so competence and musical creativity. I believe for an audition the Waldstein and late sonatas could be a biting too much to chew for undergrad. Might be better to stick with less difficult standards and really play them exceedingly well. I would move towards early Beethoven were it me if I had to do Beethoven ( I successfully auditioned with Mozart)
Honestly I would not pick or not pick on basis of how much the piece is played at this point any of the standard composer's work that is part of normal canon will be familiar to the jury.
But don't overlook handel. There are nice fuges and dance excerpts to be found!

For romantic if you genuinely connect w the chopin and you have placed well in comps before against similarly adept pianists ( ie that is level similar to those you will aud against) then go for it
*will post some less common suggestions later
Étude , you have an opportunity to bring something they may not have heard if they do not limit you to specific composers. I *heart Serbian music , if you can find the score, perhaps this.
or something else by him,,there a lot

For impression is have a look at Joseph Marx. The work is incredibly well crafted , sounds amazing , fits the criteria, and is likely a breath do fresh air to some jurors. ( for these types of things It may perhaps be a good idea to juxtapose a both tried and true stds and some less common but worthy well composed works)
Ie here is a great Marx prelude
And here is an arabesque that I adore
Or if you are needing a shorty