I join the other posters in that I would do it all again in a heartbeat but that is from the standpoint of 45 years. After 2 years of college I went to Navy and, like Flieger, battled the academic monster all 4 years. What surprises me even today is that what I took away from the Academy was not academics, sports, travel, etc. but Plebe Year. To this day my work ethic, how I judge other men, my sense of honor, my sense of loyalty, what I look for in leadership, was all formed (i.e. pounded into me) during a very hard and physical Plebe Year. Maybe I was really a project for the upperclassmen, but years later as I sat in big shot corporate conferences listening to the "smartest guys in the room" and their miserable leadership, all I could think was "Bozo, you would not have lasted 3 days in my Plebe Year company".
Plebe Year also came out 24 months after graduation when, much to my amazement, I found myself off my destroyer and wading through mud with the brown water Navy in Vietnam. Now the virtues of being on time, prepared, and on target was no longer yelled at me and enforced by the spawn of the devil we considered the class of '65 & '66, but an actual life-saving pillar of truth. Things like truth in communications, loyalty to a shipmate, no excuses, and facing choices--all bad--were very real. I had run into it all before in the sweaty halls of Mother B and I was astonished to find others who did not operate that way.
I cannot tell you a thing about differential equations, old football games, Mahan's impact on naval warfare, or even the names of the streets outside the wall in Annapolis, but I remember everything about Plebe Year. And, by the way, I hated it and would not have traded it for the world.