Hmmmm, thats a tough choice.
I don't think I have only one fav, thats just to hard to pick, but a few male characters that stand out to me are.......
Mr.Darcy from Pride and Prejudice because though he's not the most easy going man he has a good heart and is loyal to those he cares for.
Halloween from Nick Sagan's Idlewild, yeah he's got a little angst going on but wouldn't you if you found out your entire world was fake and someone was trying to kill you?
And Acheron from Sherrilyn Kenyon's Dark Hunter series, basically because he's my favorite vampire ever!
As far as female chacarters go I've enjoyed....
Elizabeth Bennett from Pride and Prejudice, because she has her own mind and doesn't conform to what everyone thinks she should be.
Clarissa Rue Hawthorne from Shana Abé's The Smoke Thief, another heroine who just wants her freedom, and I wanted to see her get it.
And Violet Mathers from Lorna Landvik's Oh My Stars, this book had me in tears more then once, and reading about all the things that Violet went through and overcame was very moving.