Guess I'll talk about the character portrayals for my SSB/Touhou crossover.
The basic plot of the story involves eleven of the girls getting transported to various different worlds from some of the series represented in the SSB series.
Reimu: I made her pretty close to her canon portrayal, I think. She sort of dislikes getting into business that doesn't concern her, though she admits feeling guilty if she doesn't do anything about evildoers. She has an obsession for money.
Marisa: I think she's pretty close to canon too. She likes excitement and battles.
Youmu: One of my reviewers said that she's supposed to be aggressive. I sort of made her a "ask first, attack later" kind of person, but asides from that, I think she's pretty in-character. Oh yeah, she's also afraid of ghosts.
Alice: She almost always looks cold and expressionless, complete with half-closed eyes. Despite this, she's actually very kind and is calm and collected at all times.
Meiling: I'm sure I made her almost the same as her canon portrayal.
Nitori: I pretty much dropped her shy personality when being around humans, though she admits feeling a bit nervous when there are too many humans around her. She has a large interest in machines and is a great inventor herself.
Cirno: She's always proud of herself, not to mention rash. She's not very bright either.
Reisen: She's quite a worrywart and shows a lot of concern for various things. I also made her somewhat knowledgeable in the medical department, so you can say she's the healer the group.
Remilia: Charismatic, confident, calm and collected, etc. Pretty much identical to her canon portrayal. She does lose her temper if her opponents are giving her a hard time.
Aya: Likes to boast about her speed. She's also has quite a bit of curiosity, so she tries to gather as much information as she can on various subjects.
Sanae: Kind, sweet, and loving, but becomes very worked up when it comes to exterminating demons (what I call youkais) .
Yeah, Sakuya isn't one of the main characters, though she does make minor appearances in the story. However, I did plan to use her at one point, along with Mokou and Keine. To be precise, I actually thought it would be a good idea to use Mokou after I started posting chapters of the story onto FF.net, but obviously, it's already too late. I originally dismissed her inclusion due to her immortality.