If you ask me in terms of running, I would definitely say professional. In that same line, I would suggest reading the book "Sub 4:00: Alan Webb and the Quest for the Fastest Mile." The book does a very good job, I thought, explaning the collegiate system, and its drawback, and makes a comparison at the end with the professional racing and training. \n\nYou can find the book at your public library, beside it's a good book to read.
Which is better collegiate or professional?