This is honestly kinda tricky... they're a really solid set of characters and/or fandom hallucinations, and yet none of them are my Big Favorites... I think I have to say Flandre. I love that she's edgy, a little snarky, and super chuuni, and that she serves as an antithesis to Remilia's attempted "high-class" demeanor. I want to make a fighting game moveset for her. Dress her in red and black instead of red and white for my ideal Flandre.