As someone who was exposed to semesters and quarters in college. I definitely prefer the quarter system. With semesters you have a heavier class load in a given semester compared to the courses you take in a quarter. But when it comes times for midterms and exams, the profs don't care that you are in 5-6 other courses, and you end up having everything due the same week.
Also, going on winter/spring break, you came back with a new slate of courses. Going on Spring Break, then coming back knowing there is only a few weeks of classes left, and having to retain all the info from prior is not a fun thing. Starting fresh after was the way to go.
Also, Spring Quarter... an extra month of nice weather on the Oval.
The only bad thing was competing for summer jobs with the semester kids.