Best wins not from Dayton or VCU (based on Massey Ratings -
https://www.masseyratings.com/cvol/ncaa-d1/ratings):
Duquesne at home against #198 Bowling Green
Davidson at home against #223
Charlotte
Duquesne Neutral against #240 Eastern Mich.
Rhode Island neutral against #238 Columbia
Rhode Island home against #284 New Hampshire
Fordham at home against #289 Dartmouth
GW on the road against #291 LIU Brooklyn
Fordham at home against #292 Bryant
Rhode Island at home against #297 Army
I think Massey tried to include Division II and II schools too, so the numbers don't match up with RPI at all. However, its still a good representation of which teams have the best wins.
Duquesne and Rhode look like they have the highest ceiling from the remaining teams with Fordham slightly behind them. GW is the only team to have a road win in this list. We may not have seen the best from GW yet.
La Salle overall has a good resume. Massey Ratings currently have La Salle higher than Fordham and GW. No bad loses, but no huge wins.