Okay, once again I've been stupid and overwhelmed myself in my games. Well, not Route 29 because I only have 34-chan over there and don't intend to drop her, but I have four in both Queen of Hearts and Mayfield and I have learned with absolute certainty that three is the max number of characters I can handle in a game to maximize my variety and ability to build CR without it feeling too intimidating.
And because there are a lot of characters I've been wanting to app for quite some time now, I guess I'll make this into a 'To App' post, too, since I've been meaning to do that to reference in the future when I have time/room for more characters.
MAYFIELD
I am not dropping Keiichi, so I'll do my other three.
Fate
PROS: Strong adult woman! My favorite character from Nanoha. I also have a Nanoha.
CONS: Very difficult voice. Still has little CR. I worry I'm not good at making her interesting.
Erika
PROS: Just got some really good regains. Just got a Bernkastel. Really freaking weird.
CONS: I really need to canon review but don't want to. Her voice is completely gone at the moment.
Karkat
PROS: Enormous cast. ALL the castmembers. They're also all really great. I've gotten over the judgmental Homestuck wank problem.
CONS: He is incredibly exhausting to play. He also feels incredibly repetitive to play.
I will admit that I am terrified of dropping any of these three due to castmates. Dropping Fate would be terrible to do to Nanoha, especially after I begged Caleb to app her. Dropping Erika would be terrible because we just got a Bernkastel and I've been wanting one forever. Dropping Karkat...well, we'd probably get a new one immediately but I have personal friends playing his most important CR so that'd make me sad.
Part of me actually wants to drop all three, because I've been feeling...really, really out-of-place in Mayfield for a while and I think sort of resetting myself might help, but that'd be really annoying to so many people...
Random list of characters I've been considering apping, though not intending to any any time soon:
MAYFIELD: Homura (Madoka), Lamia Loveless (Super Robot Wars), Minori (ToraDora!), Etna (Disgaea)
Queen of Hearts: Cynthia (Pokemon), Kaguya Nanbu (Endless Frontier)
Route 29: Kanako Miyamae (Maria+Holic)