Please don't take offense, but I'm assuming you are just starting your schooling, because by the time you graduate, you will hopefully realize that your question, at least as phrased, is not meaningful.
"Is Shure, Neumann, AKG, or Audio Technica the best for vocals"?
Let me explain why, on many levels, this is a nonsensical question:
Each of the four brands you mentioned make dozens of models of mics. To mention only the brands without specifying particular models would be like asking: Which is the best cereal: Kelloggs, General Mills, Post, or Quaker. Since each brand has so many varieties, the question becomes silly. In addition, you left out many other equally popular brands, seemingly at random (like Earthworks, Manley, Brauner, Soundelux, Schoeps, BLUE, EV, Sennheiser, and dozens more). Since you apparently just chose four names at random, it also makes the question a bit odd.
Within those brands are mics that differ drastically in quality and application. So in another way, your question is like asking: "Which is better - a Rolls Royce or a Lamborghini? A Lexus or a Hummer? A pick-up truck or a jet ski?
Obviously, there is no right answer to those questions, just as there is no right answer to yours. If you don't believe me, ask one of your "professors" at school the exact question you asked us, and see what kind of a response you get.
We're not picking on you, just trying to point out that even if there WAS a right answer to your question, it seems fairly obvious that you don't have the knowledge or background yet to make use of the information. The proof is, that even Harvey - who is practically the Dalai Llama around here (compared to most of us) couldn't resist giving you a somewhat sarcastic answer.
Hang out here a while and read the hundreds of threads about "best microphones". You'll gain knowledge quickly, and combined with your schooling, I'm you'll soon be asking questions that are insightful and thought provoking. Good luck.
P.S. What does "MTSU" stand for?