Just to let you know, they changed the format a little so the semis use dynamic seeding. This basically means that if say FNC (6th seed) and OG (4th seed) both move on, G2 (1st seed) will face off against the lowest seed that moved on, so in this case, the semis would be FNC v G2 and H2K v OG.
With that being said:
I think VIT will knock down FNC and OG will take out UOL.
From there H2K will beat VIT, but I think OG can beat G2 in playoffs.
Winners will probably end up being H2K.
Simplified version:
FNC[6] v VIT[3]
UOL[5] v OG[4]
H2K[2] v VIT[3]
G2[1] v OG[4]
H2K[2] v OG[4]
As for NA:
TL will beat NRG pretty easily imo.
C9 should be able to knock out TSM based on how inconsistent they've been this season.
TL v IMT will be interesting, but I'm gonna have to say IMT because I doubt TL will be able to capitalize on IMT's mistakes.
CLG and C9 will more than likely have a close series (hopefully) and it can really go either way, but I'm gonna favor C9.
IMT v C9 will probably be a 4 game series that will be won by IMT, I think they have enough tricks up their sleeves to beat C9, but C9 will definitely put up a good fight.
Simplified version:
TL[4] v NRG[5]
C9[3] v TSM[6]
TL[4] v IMT[1]
CLG[2] v C9[3]
IMT[1] v C9[3]
Note: I will admit, I started watching this season at the last two weeks, so obviously I'm basing this off of two weeks and their record (plus what the analysts have said about each team, so... yeah). Not to mention some bias of course.
As for third place matches, I'm gonna say G2 and CLG.