OK, I was curious so I just spent a few minutes looking. Gourman report was long the most reliable ranking but has not been updated in years. U of MN is #1 in chemE in that one, GaTech not in the top 10. U.S. News is ridiculed by academics but widely read by the masses, and is updated every year. U of M is #4 in that one, GaTech #6.
NRC is another one that academics respect. U of M was #2 for a while, then #1 for years. Currently U of M sits at #6 and GaTech is #11.
Basically, I have never seen GaTech rank ahead of the U of M in ChemE in any list, and such a list would be highly suspect if it did exist. See discussion link below.
I'd also add that, from a world perspective, the University of Minnesota is generally more highly regarded than within the U.S. and typically ranks very highly among world universities. GaTech is a good engineering school but nowhere near the overall university that the U of M is.
Basically if Anas' decision is based on academics it's a no-brainer that Minnesota trumps GaTech, assuming he does his due diligence.
US News
NRC
Discussion