Did you clear your memory and past history first? What ChatGPT knows about your preferences from past inquiries influences the responses.
Clearing memory and repeating inquiry, I got the same top 5, although the order between RPI (#5 → #4) and Cornell (#4 → #5) was swapped. It also added a column for numerical rank, changed the majors offered to list EECS availability instead of EE and CS in different columns, and changed “prestige” scale from a numerical ranking to “very high” / “high”.