gettin'there,
I don't have a simple answers to your question, but here are some things to consider.
Have you identified 2015's schools of interest? Would most of those schools come see him play a Legion game? If so, score one for AL. If not, the travel team is probably going to give you a better chance of playing in front of recruiters (depending on their schedule). IMO, camps and showcases play an important role, but coaches want to see them play in real games.
What are 2015's other options? Does a high-level travel team want him? He's probably already missed quite a few tryouts for summer 2014 teams, although many of those teams will add players at any time if the new player is an upgrade. Playing for a mediocre travel team, in front of schools he has no interested in, would not be a great investment.
Could 2015 play AL, but be a guest player at one or two big tournaments next summer (e.g. East Cobb)? This is probably much more feasible for pitchers. I would only pursue this if the AL coach was on board with it, since he would likely miss some AL games.
Are you prepared to invest a significant amount of money into travel ball? The team fees and travel expenses add up quickly.
Attached is an interesting article about MD Legion baseball from 2010:
http://ww2.gazette.net/stories...evspo93439_32547.php