Okey doke, let's go! :D Thanks a bunch for the ask!!
blorbo (favorite character, character I think about the most)
Ooh god, this is already hard asdljfadf. Hmmm. This is a very basic choice, but I'm going to go with Adora. I relate to her too much for that not to be true. "You're worth more than what you give to other people" made me burst into tears and still does so 9/10 times I rewatch that scene.
scrunkly (my “baby”, character that gives me cuteness aggression, character that is So Shaped)
Emily is a scrunkly. Excellent robot friend :D
scrimblo bimblo (underrated/underappreciated fave)
As someone who's poked around the SPOP fandom before, I feel like who's considered "underrated/underappreciated" HIGHLY depends on which corner you happen to be inhabiting, but I'll go with Glimmer, even though I'm not sure she counts. Love her and her character arc and her aggressive sparkles. If you don't think Glimmer counts for this, either Entrapta or Bow. Tech whiz who has a bigger impact than she knows (and is worth more than she thinks), and the heart of a whole lot of things who refuses to not wear a crop top.
glup shitto (obscure fave, character that can appear in the background for 0.2 seconds and I won’t shut up about it for a week)
Mara. Hands down. Or maybe Mara and Light Hope both, honestly. They don't get a lot of screen time, but their stories both hit really hard, and their dynamic/relationship is top tier.
poor little meow meow (“problematic”/unpopular/controversial/otherwise pathetic fave)
This label is "poor little meow meow"...I have to pick Catra, aldfsja xD Resident cat girl, has made five million mistakes, finally fought for and got her happy ending. You can find at Least three times as many debates on her character as the mistakes she's made if you go looking for them, but I really do love her. She's blatantly and flat-out imperfect, and she doesn't know how to handle emotions that aren't anger (and to be fair, doesn't really "handle" anger that well either), but she's got herself a magic therapy cat, a girlfriend, and a good future, and I couldn't be happier for her.
horse plinko (character I would torment for fun, for whatever reason)
Hmmmm...again, kinda basic answer, but I guess I'd have to go with Horde Prime? I'm only hesitant because he's the type of villain I would rather just see gone rather than tortured (even though he's a terrible person) because I don't trust him to stay contained if he's alive, but if I had to pick someone...yeah sure. Put him through the horse plinko. He deserves it.
eeby deeby (character I would send to superhell)
Double Trouble, if only because their shenanigans to get out of it would be hilarious.