The trick to defeating Alliance is banning Lone Druid. Bulldog is a strong player, but somewhat less flexible than the others. If you can ban that and something like Chen, you force them to play the secondary drafts. Pick Batrider first if they don't ban it, and you can win (maybe :V ). Pretty sure Na'Vi did this and was the only ones to beat them. I'm not a pro player but yeah. LGD drafted like shit too. Broodmother? Against Storm Spirit and Naix? All those little spiders are just food. They give extra gold too, they were nerfed. LGD threw unbelievably, however, I think it was just brilliant drafting from Alliance in banning the 2 core supports. Those guys are really hard to outdraft.
Funny thing too, Mouz has been the only ones to beat them in a BO3, and that was before the really great change with Synderyn. That team is one to not underestimate, honestly.