Not really a huge fan of Power Rankings, but seeing as this thread is currently more desolate than my team chat, I thought I'd liven it up a bit by giving some of my thoughts on the players.
Alpha Ruiners - Siatam
One of the five and a half regularly active members of the GSC discord, Siatam's been directly responsible for a lot of the tier's resources being updated in recent times. This is reflected in his team choice, being varied and unpredictable while still generally preferring teching overall solid squads for a given matchup. In terms of play, he's very solid and has shown a knack for strong earlygame positioning, in particular. I think his biggest weakness is that he sometimes overextends in the team department vs veterans where he should be more trusting of his ability to outplay. Siatam's experience is likely to do him well vs a pool with a fair number of new starters.
Cryonicles - Conflict, Vileman
Conflict's coming hot off of a Classic win, and there's no reason to think that his formula for the past several years will stop working now. His ability to read the game state makes him particularly strong at knowing when to pull triggers to reverse momentum, and his teams are well-tailored to his playstyle. If he can resist the urge to put counter on every single poke, it should be pretty smooth sailing for the Don. I also think that Vileman's quite good, and I don't really know how he's been scammed out of a starting spot for a million years in a row. I could definitely see him being subbed in if Conflict needs to move to ADV and performing well, so long as he doesn't take too many unecessary risks (Snorlax is supposed to switch out of Cloyster boom, pal). His high-octane offensive stuff can be a little one dimensional, so he'd need to be careful about overrelying on it, but he is a vigorous player that keeps up the pressure.
Congregation of the Classiest - Fear
My pick for the greatest GSCer of all time, Fear hardly needs any introduction. I think he wins the "Most Likely to Succeed" award this year for a number of reasons: his play is consistently sharp and measured, his teams can alternate between the established standard and creative, and he has an eye for finding and exploiting an opponent's weakness. Like Conflict, at times his team choice can get kind of wild, but I think he's generally a little bit better about reining it in. The major hurdle I could see for Fear this year is a decline in interest and time investment, but in the event that he needs to take a step back in effort, he has the ever-coveted d0nut support.
Dragonspiral Tyrants - Rubyblood, BlazingDark
The Tyrants' lineup took a bit of a hit after A Certain Someone got banned, but thankfully they had Heckle and Jeckle on standby, both of whom are nice options for the slot. Both of them seem pretty similar in style (no surprise, seeing as how they're conjoined at the hip), although I am a bit surprised that it's not Ruby in the slot, considering how well he was playing in GSC Cup. Even still, I've teamed with Mister Sauce ™ enough to know that he's proficient in the tier. I feel like most of the games I've seen out of him have been vs relatively less proficient opponents, but I'm excited to see how his Starmie Armada fares on the big stage.
Ever Grande Bigs - Zokuru , Susciety
Although he is certainly Eccentric (Gengar rank 1, anybody?), Zokuru's style is well-defined and his playing ceiling is high. Predictability is relatively more difficult to exploit in a small, centralized metagame like GSC, so I actually take less issue with his Strong Preferences here than I might in another tier. With that being said, there are still a number of ways to take advantage of the types of teams Zok likes most, as his NidoGar offenses and his stalls have a nonzero amount of overlapping weaknesses. He has the ability to succeed, but he'll have to Go Beyond his comfort zone and his obstinate view of the tier. Finally, I feel that Mr. Ruins of Alph Room Moderator complements Zokuru's style pretty well, and that he'll offer nice ideas for build diversity.
Indie Scooters - vani
Quiet, reliable, and persistent are the words I'd use to describe vani as a player. Like Siatam, vani grinds the circuit tours all year round, to good success. He's deserved his shot in SPL for a while and I'm glad that he's getting it now. In general, I like how he plays and I think he's good at not overextending in long games, but conversely, I also think that he could stand to hold his booms for a bit longer when he's playing offense. On the whole, I'm excited to see how he evolves in a high-stakes environment.
Stark Sharks - ggggd, Aliss
I honest to god have no clue what to say about Pablo, outside of the observation that he desperately needs a smogon name change. While he did well last year, there was a lot of luck involved in his wins, and I'm curious to see how he continues to develop his style in this tournament now that he's starting full time. From what I'm told, he really didn't want to play GSC this season, so I think we're likely to be seeing Aliss sub in here. In the meanwhile, it's nice that he has someone to help him with the nuances of the tier and build for him in case he needs it. I think in the event that Aliss subs in, she'll see more success if she focuses on her long-term gameplanning; stall has been a bit of a hurdle for her in the past. If she's able to overcome her mental blocks, she'll definitely be a strong contender.
Team Raiders - Kenix , Chiles Habaneros
Although it's probably a bad idea to feed his ego by saying this, I think Carapinga's a very strong, proactive pilot and pretty much always brings solid teams that give him room to outplay. Unfortunately, it seems that he has been whisked away to RBYland, although I can hardly blame him with how many strong challengers there are. I'm not too disappointed, though, as Chiles is a long-time lover of the tier that's finally getting his well-deserved shot. I think he takes a lot of high-risk, high-reward lines, which means that he's usually either giving a beatdown or receiving one. It remains to be seen if Kenix will try to steer Chiles away from his prediction-based, Heracross-loving style, or if he'll encourage him to embrace it.
Wifi Wolfpack - ziloXX
Generally someone who keeps a lower profile as a sub, zilo's stepping up to a full time starter slot. Although I'm not too familiar with his game as a whole, I've been impressed when I've played him, making frenetic choices to maintain tempo. Like with Chiles, I'm curious to see how much influence his support has on his team choice; hopefully he doesn't let his teammates convince him to load a team with 3 damaging moves total. Although I'm partially joking, I think that he should remember to use teams that he likes and that play to his strengths.
Good luck to everyone this season!