Not so fast gentlemen. I actually think me and Shin come out on top if just barely thanks to our underrated teams. The only ones on your side with true killing power are King Kong 2005 and Kumonga (Showa) for starters.
The only kaiju that are a big threat to me and Shin are the Mothra Larvae. No one other than Goliath and Megalon has true firepower (AKA webbing doesn't count since webbing doesn't do shit when it comes to actually hurting the recipient) and that combined with questionable durability on Coob and Cam's part only aids me and Shin. Superior Air support is only a minor problem considering that Megalon can just jump and smack Birb out of the ground before getting a hit-and-run fest at Megalon's expense. Birb would be a problem on paper thanks to that formula but I have Mothra (Legendary) who defeated a Rodan in the past, she will no doubt go for Birb first based on familiarity and cover him up in the webbing if not stab him with her stinger outright to render Birb out of commission. Her being faster only sends the ball in me and Shin's court Birb does go up close and when he does, that's gonna go BADLY for him. Megalon and King Caesar are the most durable kaiju here and the latter is the best fighter on the battlefield. The likes of Gabara, Mothra, Goliath and Kumonga are beyond screwed if King Caesar looks at them funny. All Megalon has to do is spit out a Napalm Bomb or two and there goes Goliath's horn and Mothra's ability to fly.
The King Kongs are overrated, 76 Kong STRUGGLED to fight a snake and got KO'd by falling into a ditch. Sure he survived flamethrowers but he got taken out by helicopter machine gun fire. 2005 Kong got knocked out by Chrolofoam and later died via gunfire. He's a good fighter don't get me wrong but Spinosaurus is being underestimated here. Spinosaurus can thrash Vastatosaurus in less than 2 minutes and even give the Kongs a run for their money. Sanda is the smartest and I don't see anyone really taking him out besides Kumonga or the Mothra Larvae. Ebirah gets his arms ripped off by either Sanda or King Caesar or he just gets constricted to death by King Cobra. Gabara lost to Minilla of all kaiju and he takes forever to actually utilize the voltage attack. I don't think such an attack would work on King Caesar since Caesar's a golem made of stone and again, he's the most durable kaiju present. Rhedosaurus is being underestimated too, he's got deadly blood that can slowly kill anyone he is up against. King Cobra has the power to spit glue that blinded Zilla Junior and trust me when I say that King Cobra will be spitting at everyone to blind them. SOS Mothra has scales and hurricane winds to counter Showa Mothra's own winds and send Showa Mothra's powder back to hamper Coob and Cam's squad. And SOS Mothra's scales render Goliath's lightning beam useless since that just results in an explosion that destroys Goliath's horn. But again, a Napalm Bomb from Megalon gets the job done faster.
Raijin is kind of useless here since no one on our side has energy-based attacks from the arms for him to absorb and send back out via a punch of his own. Gezora can handle anyone that is not used to the cold and believe me, EVERYONE is not used to low body temperatures.
The Kumongas might cancel each other out because Millenium Kumonga shoots out a yellow web net faster and there goes Kumonga Showa being a threat right off the bat. Keep in mind Showa Kumonga burned to death which means she's just another weak link that me and Shin's team can exploit. Gabara is a joke and gets humbled by King Caesar should they cross paths.
And another thing to note is that both the Showa and 2003 Shobijin are present to guide their respective Mothras so I guess you could say that those two Mothras cancel each other out until backup arrives. The Female Muto is worthless since she doesn't have a mate to team with and all she does is just ram into her opponent and then stabbing the hell out of them. That shit ain't gonna work on anyone that isn't Kamacuras Millenium who might not really contribute much anyways. She might even go for King Cobra first which works out well given King Cobra's origins and the power to blind his opponents.
So what seems like an even battle at first quickly becomes a massacre in terms of numbers and unfortunately for Cam and Coob, me and Shin aren't gonna be losing members as quickly as they might think on paper.