Papers Please, please. =P
One of the characters I'd like to see more of is one that we're both familiar with (Vector), considering our lengthy conversations over in the anime thread. I'd like to see more characters like Asuka from Neon Genesis Evangelion. That doesn't mean I want to see tsunderes, although she is sometimes credited with being the character that started the craze. Tsunderes are an overused character archetype that take advantage of a faux sense of relationship improvement, which ends up causing people to like them more. It's a psychological thing, and it's fake. Asuka is the type of character that has character traits and behaviors that people legitimately dislike. However, unlike most other characters who might have that, she isn't designed to be the butt monkey, or a villain, or someone-you-love-to-hate. She's designed to be human, and in doing so, she's outside of most character archetypes. She's a character that has issues, and any positive change in how she considers you has to be earned, and if you don't try to look past those issue to try and understand the person underneath, you'll just think she's a horrible person and she won't give a damn about you in return. That's missing from a lot of characters that are similar to her. Too many characters have very easy paths to character development, a sudden revelation where everything clicks together and everyone sings Happy Happy Joy Joy.
So I guess what I'm saying is I'd like to see more characters that aren't instantly likeable but aren't designed to be someone the audience is meant to dislike, and require a multifaceted approach to character development/relationship development. Someone who you can tell isn't just the sum of their appearance or behavior, but if you want a glimpse beneath the surface you need to work for it. I don't see many characters like that, and I'd like to see more.