Which graduate school out of these?

This is a sequel to my first question What is climate in these parts of the US like?

The candidate is international student. He has received four acceptances and four rejections. He has been accepted into:
University of Arkansas, Fayetteville, AR
Oklahoma State University, Stillwater, OK
Kansas State University, Manhattan, KS
State University of New York, Binghamton, NY

You can figure out rejections.

If you want to know what major he is going to be, then I’ll have to ask him. I will ask him anyway.

Which one would you choose? Why? Take into consideration on-campus jobs, graduate assistantships opportunities, and job prospects after MS.

He has been advised to select the one in NY state since job prospects are better there as compared to other states in consideration.