Favorite male: Eridan or Jake (IthinkIhaveathingfortheHopeaspect)
Favorite female: Terezi at the moment, but I also really like Rose and Kanaya. And I'm starting to take a liking to Meenah and UU too...
Male: (my list is long <3) Kankri most of all, Karkat, Gamzee, Rufioh, Kurloz and Tavros I just can simple pick of them, its impossible!!!
Female: Terezi, Damara, Handmaid and Vriska
. I can't pick one of them either <3
I'll just put it in categories because I love many characters.
Favorite human male is John, favorite troll male (and favorite character) is Karkat.
Favorite human female is Jane (just love the crocker-egberts for some reason), favorite troll female actually (it's the category that most changes) is Nepeta.