For my top 3, I can see either TMW, KoA, or wK winning this UNAC.
I will list reasons as to why each clan has what it takes to win this UNAC.
TMW- Without a doubt, the premiere infantry lineup. Assuming neither side has a bad day, TMW wins the day in straight infantry fights. The Mok, Uni and Warpath combo is the best trio out there. Period. Their closed map cav is decent with Can being their main one. Where I see TMW lacking is their archery. While I regard Clockwise as a good archer, I believe Sota may be falling out. I used to be terrified to go near that guy, but I'm not so sure if I feel his presence as of late. TMW's open map play could use some work, though. They have a few good open map cav like Sikici, Can, and Uni, but I worry how active Sikici will be since he is a Turkish player.
wK- I don't know where to put wK's inf. On the closed map of the semis vs KoA, Oodle and PPK were relatively shut down by a combo of KoA's archers and infantry. Oodle and PPK are still a really great inf duo, but I worry that they may be overwhelmed by a team that runs 3 or more infantry vs them, because I noticed they are often the lone inf on closed maps. Where wK is unmatched is in their open maps. Most teams require maybe 3 or 4 good cav to be able to win open maps, but Calamity and Gelden are absolute monsters on open maps. As for archery, Lagstro is a fantastic archer, obviously, but with Achilles posting his retirement, their archery core is looking weaker. Much will probably depend on how Juve readjusts to the scene after being out for a long time. In terms of cohesion, I consider wK to have the best.
KoA- I believe KoA to have the deadliest archers of any clan. John and Rhadagast had lights out performances in the semis and have consistently since then kept up amazing play. With the addition of Fatso to KoA's roster, this seals the deal. The closed map play is definitely KoA's strong point, in my opinion. The open map cav is iffy, with Brave and Cru the only veterans in the open map cav department. Robocop will probably play a big part in the success of KoA's open map cavalry. As for infantry, I believe them to be neck and neck with wK, and maybe the slight edge. The addition of a now active Robocop is a huge advantage in infantry since Robo is a very insightful and highly skilled player. If KoA wants to win, they need to step up their cohesion.
Rest of the teams will come later. Keep in mind, the above three are not in order of power ranking. Just the order I wrote in.
4. Wappaw- Wappaw reminds me of what I heard in a power ranking one time- the gate keeper of the middle tier clans. I don't see anyone but the above teams beating them. They might only have a struggle with the HB/Balion team, maybe. They need to get their members more active.
5. WTTM- Assuming WTTM gets all their players to show up, I think they will take 5th. Arys and Vitus have taken great strides and improved greatly as infantry. Their Europeans are pretty good too, like BlackTide and OGL. It depends on how active they will be, though.
6. Balion/HB- Yeah. I put this team mix of formerly great clans at 6th. When I look at their roster, I see only one outstanding infantry, and the rest is a clan of archers. I see no difference maker in cav, either. If they want success, they need to find more infantry and cavalry, because I worry how active those HB's will be. Their cohesion will probably be sloppy too as a combination of two clans.
7. MoB- A really, really strong ranged game. As much as I don't get along with Sparhawk, he nails the shots all day long. I agree with what Arys said as well, them having a cohesive infantry core. They might need to fill up some cavalry spots, though. I expect of any team, this one can definitely surprise. I also expect if they pick up maybe a cav or two that they can definitely beat the Balion/HB team.
8. tK- Suprisingly a very cohesive infantry core. In my mind, Bard is going to be doing a lot of work with Tito. They seem to only have two cav, Heat and Hani, so they need people to fill that spot on open maps.
9. DoF- DoF suprised me when I merced for them in a scrim vs Wappaw. Even though we had four Europeans on our team, I believe we actually won the closed map on Verloren. They were a very cohesive team and their closed map cav play was really good. They need to step up other areas of cohesion, though.
I'm not really familiar with the rest of the teams, so this is where my rankings stop.