Nightwing is a very good character, and maybe the most versatile out of those. His staff stance is my favourite though. Also Deathstroke is a great zonner. He has long reach. Mind his Trait, it's weirdish. And Adam is beast, I like that guy. I don't use him unluckily.
Welcome to Injustice btw!
Currently Playing: Injustice Gods Among Us, console and mobile. Main: Solomon Grundy