Among these schools, simply looking at the name of the school, Northwest A&F University is a national key university at the deputy ministerial level, with 985, ranking first in the municipality directly under the Central Government, the highest, followed by Zhengzhou University, with 2 1 1, ranking second, and Southwest University, with 2 1 1.

But it also depends on the specific major.

In agriculture and forestry, Northwest A&F University is the best, followed by Southwest University.

Among normal universities, Southwest University is the best.

Zhengzhou University is a comprehensive university with many disciplines and specialties that Northwest A&F University and Southwest University do not have.

Therefore, looking at the specific majors, the professional focus of these three schools is different, and there is no way to compare them.