On the topic of Itagaki caring about or respecting his characters, it surprised me, but I think he really does care about them. That's what surprised me about that interview I mentioned. The guy seems extremely brash, and looking at what he made with DOA and even moreso DOAX, I figured he was just interested in busty anime chicks. Then I read that interview, and it seemed like he was genuinely concerned about remaining true to the characters.
Which is weird, because a few months later you've got the news of REALISTICORZ TANL1NES in DOAX2, and it's like, he's totally making a soft porn game, I can't figure out what he's thinking. I guess even busty anime chicks are more exciting if you actually care about their personalities.
Edit: since we're on the topic, my friends like to have epic Kasumi vs. Ayane battles (each one is a favourite of one friend), personally I don't really have favourites in fighting games, I prefer to play with everyone, but I picked Christine to be the character that I "learned" a little bit.