I agree with your thoughts on the LPL region/teams, I think the LPL just aren't that great honestly, "Trash" no but EDG just aren't this "Super-team" as people may think and I too think RNG are a bit better than say EDG and WE are coming in as a hot team at the moment. I just don't think the LPL will have this great showing at Worlds, like they have in the past years Worlds.
I also think Fnatic will do poorly, maybe get past the first round of the play-in but against say WE/GMB/HK or CLG, I see them getting eliminated with their plain and simple really predictable play-style of letting Rekkles farm for 40 mins and Soaz's split pushing 24/7, Fnatic could set themselves up for a 3v5 and potentially lose games from it.
No love for Gigabyte Marines it seems maybe because Stark left IDK but this is a team that has been biting at the bits for like 3 years to be apart of Worlds and I don't think FNC or even the team that has been kept Optimus down to be apart of the 2014 Worlds(AHQ) or even Misfits should be higher than them.
People can say G2 "vacation" memes but personally I think G2 will impressive people, we won't see a 1-5 performance from them again this year, I love their more controlled games this past split and even tho against MFS(who got lucky I suppose to even get to the Finals beating UOL and FNC who are meh/ATM) I still think people are underestimating them because of their poor past performances and overall, weak region.