the a league only allows 4 subs which is annoying. also as there are only 8 teams (and no smaller teams compete in the cup either) the teams play each other 3 times in the league, rather repetitive!!!!
also the a leagues limit on foreign players gets annoying as its very difficult to find any decent aussie players willing to come back from europe until they are older. also players cannot be bought and sold or loaned between a-league clubs so your transfer options are limited to:
free transfers. loans from outside ausralia, end of contract agreements, or a regular transfer from outside of australia.
all of the time stikcing to the no foreigner rule which i think is no more than 3 foreigners named in the squad u selelct at the start of the season.
MLS certainly has some bettter talent and is arguably more prestiguos but is far to confusing for me, drafts, transfers using draft picks (ie i'll have our player and in exchange i wont give you money, i'll give you my 3rd pick in next seasons draft... yawn)
i would say go for Queensland Roar as they have some of the best young attacking talent in the league. (and ex-newcastle craig moore at the back)