Since so many teams are very close to each other and even arguably the best team in the world - G2 was rounds away from losing to EG, 100T, MIBR and C9 in Americas alone, it wouldnt shock me if we see another cindarella run like T1 at Toronto again. So thats why I prefer to rank teams on tierlists rather than pure ranking. This tierlist is based on general community expectations and little biased towards Americas and Pacific:
Expected to win the event: G2
Title contenders: TH, GENG, SEN, MIBR
Pure dark horse: PRX
Potential title contenders but I expect them to flop:
FNC, RRQ, XLG
Expected to get grouped: TL, BLG, WOL