Well this thumb rule obviously does not apply to people admited to the top programs. But if you are scrapping the bottom of the barrel with your choices here is what you can do -

1. Go to the library catalog of the Universities that have admitted you.
2. Search for books by Knuth.
3. Select the University that has the largest number of different titles by Knuth.
4. Break ties in favor of the University which has the larger number of such books checked out

Regardless of where you go your time will be extremely well spent reading Knuth. If more of your peers are doing the same you will also have some interesting conversations