I don't think EMEA look bad. We have FNATIC (best team in the world atm according to previous performances), Team Liquid (arguably speaking), FUT (they're looking good), and that's about it. VIT is somewhat lacking in my opinion and isn't actually as good as some people say they are. Idk how KCs new squad will turn out to be and the rest of the teams just barely look alright.
I think APAC is looking great. T1 looks like they've reached new heights with xccurate, and while DRX and PRX haven't been performing at top levels in the off season, they're still highly reputable and we can definitely expect them to continue to challenge international trophies. Other teams such as RRQ look good as well, and who knows? Maybe DFM will give everyone a pleasant surprise.
China is somewhat of a question mark. I can't say for sure how good some of the teams are, but there is a large group of players with insane potential. Also, I'll go ahead and say that currently, they are the most interesting region to watch. Their unorthodox plays while unorthodox, are rather refreshing and may keep one at the edge of their seat. But I digress. Teams such as FPX, TE, EDG (?), and possibly JDG (if RA roster) too, are all teams to watch and all share the potential to make playoffs in any international LAN (in my opinion). China is looking like a great region and I hope we can see them produce a bunch of amazing players.
Americas is Americas. They've got NRG superteam now, which on paper should dominate every competition. Sentinels also look great. There are some other teams that look nice (LEV for example).