1) Epsilon - definitely think Epsilon is gonna win this hands down, I know they got wrecked last year but the team is completely different, with every player coming up as a straight upgrade from the old ones (save maybe KnoxXx for F2, altough KnoxXx is the boat captain and really puts epsilon boys in their place), Mike of course a huge upgrade over any soldier in any tf2 team and without TLR coming, he will have free reign over any other solly, numlocked seems a good upgrade over extremer altough extremer was really good numlocked seems more consistent. And Bash has been playing amazingly well, surely one of the top scouts out there atm. All 3 new players are upgrades IMO and knoxXx move to medic really impacted their flow as a team as well so I think they are favorites to win here despite having lost last year.
2) hrg - Maybe close with broder since they (broder) improved a lot from last year or really close to epsilon, really interested to see how they will perform, don't think they have the guns to fight with the current epsilon line-up tho, maybe if it was last years' lineup it would be a different story
3) broder - I feel they have a huge chance to either impress or be a massive letdown, I'm betting the first one :) Also arguably the team with most chemistry and funny comms (<3 mirelin), I also never saw any rage from them so I expect them to keep levelheaded and have a solid performance. Will have to confess I wasn't very confident with ryb on demo, as he was being kinda outplayed by other prem demos the past couple seasons but he has definitly been picking up his pace lately and will surely perform great here.
4) infused - ipz is probably the player more keen in prem atm, and his team seems to follow his aspirations, and with Kaidus in this I think they have potential either for a huge upset and finish 2-3 or a be somewhat of a letdown and endup around 5th, 4th place would be a very realistic goal tho, altough I think they definitely have potential for more.
5) iM - I'm really not sure about this at all and Im judging from recent scrims in EU bootcamp. will be really interesting . Really close to broder/infused or they will end up loosing points against lower prem teams in the elite group for knockout seedings.