This is strictly for the fun of it. Asides from the classic "master of all martial arts," what type of specific fighting skills do you think each member of the clan focuses on? They probably all have a good education in most forms from Batman, but it would make sense that each hero would favor certain attacks and styles. So, you decide your own criteria for their styles and defend your ideas.
So, I picture Nightwing as favoring a mix of capoiera and muay thai since I like the idea that he's acrobatic and can probably strike from more directions than you'd expect, and I figure he can probably kick as well as Jean Claude Van Damme. His weapon skills are pretty clearly escrima.
I figure Jason Todd probably uses krav maga for his weapon skills, with more kali style knife fighting skills. And since he sometimes uses a kris-style knife, I kind of want to see him use pencak silat because it's relatively obscure.
Tim Drake probably has some form of Kung Fu mixed with whatever judo or karate skills he had before Shiva taught him. I also like to think that he uses jojutsu alongside bojutsu for his weaponry style in case his staff gets broken. Anybody know a style that would mimic his wing usage in the New 52?
That's all I have for now. what about you guys?