Having college or military experiece is ALWAYS a plus (assuming you got an Honorable Discharge). Many of the academy class I am going in with shortly are former Marines, as am I. There is no substitute for the experience you will get there, in my opinion. The military is a great place to mature and develop social skills. College is good also, but not having had done that when I was younger, I can't really comment on it.
...let me stop you right there, sir. There's only two of us standing here and only one of us cares anything about what you have to say.