free league is based on schemes that are not popular enough for "classic" or their own category of league... like HAL, or TEL for example...
DarkLord, your not a fan of bigRR, chelsea is not a fan of darts, but im sure the darts fan's are not fans of the scheme you like, and so on, and so on...
if you made a list of all the schemes you feel should be in free league, and each person made a list as well, i believe there would be very few that are the same... so its better just to *try* to make everyone happy, and include as many schemes as possible...
the best solution is like husk said, start the game so they have a replay, and give them the free win....
another solution, is try to agree on 2 picks with your opponent before the game starts, tell him your not a fan of bigrr, and maybe he will tell you hes not a fan of darts, and you guys can both agree on 2 schemes you will both enjoy... if that fails, free win in the free league, ae?