Your job opportunities will be much more dependent on what you do than on which type of CS degree you receive. Just about everyone I have spoken with has emphasized the importance of internships and personal projects.
At Illinois specifically they claim similar placement results for the CS+X math and stats majors. The other four are so new that they don’t have data yet, but no reason why there would be a huge difference.
From Illinois, you will very marketable; but you will be responsible for being successful in the program and taking advantage of all of the out of classroom opportunities to maximize your marketability.