This question comes up regularly here. Don't do either as a college major. Study and get a degree in ANYTHING but aviation related stuff. Something that interests you would be fine.
FAA ATC is no longer wearing shorts, t-shirts and flip flops to work. Many are working 6 day work weeks, 10 hours a day. It's a poisonous work atmosphere, and the starting pay is 37k on a "B scale".
I probably don't need to spell out all the failings of the airline industry on here.
ATC: The pay is definitely good, the job (currently) is much more secure and the outlook is pretty good. You will have a good schedule and good benefits.
What good schedule ? Even in the "good ole days", you get Tue/Wed off, with a midshift thrown in the end of your work week. Just like airlines, there is seniority. You're not going to walk into a "good schedule", then or now. It's just a lot worse now.
Job security ? Sure, you'll get the same job security that FSS got on Oct 1, 2005. It was "thanks for stopping by". Their services were no longer needed, and the agency is not even sorry that some came up a few days short of retirement.
With the upcoming change in the White House, anything could happen. There may not be a federal ATC workforce anymore.
The benefits aren't anything more than you'd get with any decent company. Life and health insurance, 401(k) (called a TSP), paid vacation and sick time, blah, blah.