Hey!
The goal here isn't to know any sort of ranking.
They want to know why you picked the schools you picked.
In my case my selection criteria were (off the top of my head) :
Ideally Spain,
2 year program
Focus on ethics, innovation, doing well
Good fit
So I had a list of
IESE, esade
I added LBS (not Spain but 2 year program)
I added MIT (same as above)
Didn't add or consider Harvard or instead as from talks with them I didn't feel the fit was there (and instead is a 1 year program)
I also added IE, as it is a renowned school, but its a 1 year program and in Madrid.
Eventually I only submitted to IESE and withdrew my application to Esade (since I got accepted in my school of choice)
Basically they want to see that you didn't just randomly applied, that there is a logic in your application.
If you say one of your filters is a 2 year programme, but your applied schools are half 1 and half 2 years, you'll certainly be asked about that (probably under why MBA, why IESE)
I hope I answered your question, any further questions, please do ask.
Posted from my mobile device