Time on the water spent anywhere will make everyone a better angler.
Ball coach you are right in being fortunate enough to experience many different bodies of water at different times of the year is a big plus.
Also fishing with different people everyone fishes different. If you ever get the chance fish 5 different bodies of water with 5 different guys then rotate those 5 guys threw those same bodies of water. You can really learn alot by doing this.
I really want to fish with a lake fishermen one that reads maps and electronics and get indepth into deep structure fishing. This is where my game lacks.
Also I am a very experienced river fisherman. I had the oppertunity to fish with Terry Brown owner of another site Terry showed me things on my home pool I hadn't done since before 1993. He made me realize a few things that I had totally over looked for 12 years and more than likely 20 years since I began fishing there. It will deffinantly help me out when I get done with college and make me that much better of an angler.
You always learn every trip out if you don't learn something you are either too arogant, too closed minded, or just not paying atention.