Re: Welcome to our new Co-GM, OakMaster! :-)
I believe at this point everyone has a firm enough idea as to what your character's playbook will be. If you haven't made up your mind about the playbook or want to change a playbook you had at least mentioned before, let me know.
Otherwise, one determinant of team breakdowns will be the maximum number of duplicated playbooks. Which, if memory serves, is currently three instances of the Brain playbook. As playbooks shouldn't be duplicated within a team, this means three teams of roughly (again, IIRC) five team members each. And that is probably the best team size anyway.
So here is the method I suggest:
One Brain for each team.
For doubled playbooks, a Double in each team until the 'supply' runs out.
Should there be more than one kind of Double, the second kind of Double will skip the second team and be assigned to the third team (allowing the unique combos of First & Second kind of Double in one team, First Double alone in the second and Second Double alone in the third team)
After that, the singled playbooks will fill the teams, in alphabetical order of username, until the first team is filled up. Then the second team, then the third and last team. I will try to divide the teams as evenly as possible but the third team will likely be the 'runt' of the litter, last but in no OTHER way least.
If the above seems confusing, don't worry about it. It is my math problem and is probably easier shown than explained. Also, once the teams are set by me, players can swap teams if they can find another player to swap with them. Again, duplicated playbooks can't be on the same team but we should be able to work it.
In our game world, the team division works like this.
Each team has a dual identity, their 'secret ID' is one of the houses of the Stanley school, their super ID is their super team (which they can name as they wish). Every team member is assigned to a house, even if they don't actually live on campus. The houses are actually named after various real-world luminaries of Marvel Comics History, although they have some game backstory as (like most universities) dull bureaucrats who ran the school in some way.
Provisional Houses:
Goodman House (Team 1): This house is named after Martin Goodman, the original publisher of Timely Comics, the precursor to Marvel Comics.
Kirby House (Team 2): This house is named after Jack Kirby, the main artist that helped shaped Marvel in the early years. The team of Stan Lee and Jack Kirby were unbeatable until their later feud.
Ditko House (Team 3): This house is named after Steve Ditko, that other artist who helped make early Marvel, very wonderfully trippy. He set the mood for Doctor Strange.
Thomas House (Team 4): This house is named after Roy Thomas, one of Marvel's early editors. This house is possibly for the NPC 'Tween' team.
There may be other houses, on the Stanley campus or others.
Let me know what you think...