I'll take a shot at non-DA:
2-3 practice days per week, allowing for 2 days privates or Fitness based on Parents or Players time schedule.
More Tournaments, ability to play more games and have more diversity of appointments.
Multiple games on the same day, Ability to have 3 day tournament and actually have a playoff and winner.
High school soccer, great way to ensure your child retains there Love of the game.
Pathway to National Team play, Scouts look for players not Teams. If they are skilled they will be found. Especially if they are attending a lot of tournaments and showcases and getting a lot of playtime.
Pathway to D1 college play, Most Clubs primary focus is geared at promoting and assisting Players to getting scholarships to Collage and ensuring players are getting maximum exposure. Unsure if this will be true with DA Teams, whose Goal is making better National Teams.
Shorter flexible Season, ability to participate in alternative sports and also be part of alternative teams and programs. High School, ODP, ID2, Other Country National Teams, playing up and subbing for clubs other teams, Playing in Futsal leagues, Playing with friends on other teams or tournaments.
Better substitutions and smaller rosters, IMHO There is no substitution for Game playing time . Game time is highest speed of play, pushes players to perform under pressure and builds Soccer IQ better than any drill ever will.
Ability to move and choose Coach that fits your child style of play and who they will develop best with.
Cost - travel is the big equalizer.
Travel -likely on par with DA, if our on a good team your going to travel...
Proven Club programs for developing Players to play in Collage can be researched from past results.
I'm sure things with change as this is only the first year of DA, for my DD , playing DA would have meant giving up too much Soccer in her life.
Now don't get me wrong, I understand that most of the top players will choose to play on DA teams, so the competition level should be higher, steel sharpening steel . But have they created a better system to promote Soccer Development. That remains to be seen....