Mains:
Mileena: She's always been one in my top 2 females in MK. Jade and Mileena were my favorite girls, followed by Kitana. I love me my ninja girls. Mileena is looking INCREDIBLE in MKX, absolutely loving everything about her and I will dedicate most of my playtime to her.
Sassy Cassie: I thought I would hate her, I wasn't a big fan of Sonya nor Johnny, but there is something about her that makes me really want to play her. And I will, mostly the Hollywood variation. If it's really as fun as it looks, I will definitely play Cassie a lot.
Kung Lao: My long time main, I love this man to pieces. I hate his "old" look in MKX, but hopefully his alt costume is amazing. I will play him, but I really wanna dedicate most of my time to Mileena this time around.
Play a lot but not enough to "main":
Subzero and Scorpion: Always my favorite ninjas, my homeboys, no MK ever comes out and I don't play these two. I love them.
Ermac: Oh Ermac, my 3rd favorite ninja in MK. He's always been fun to play, and if he's anything like MK9, I will definitely play him.
Kitana: My 3rd favorite girl in MK, and her Assassin variation is looking really fun.
Kano: This one is a surprise, I never liked Kano, NEVER. But this game, something about him in this game is looking awesome. His fighting, his rugged look.
Predator: It's the MFing Predator.
Occasionally:
Raiden.
Tremor (maybe?): To be honest, I see him being nothing but a fad, a second grade ninja thrown in here just so people shut up. But we'll see, maybe they'll prove me wrong.
Johnny Cage: Unusual for me, this is the first game where I find his playstyle looking fun.
Shinnok: If he plays like I'm expecting him to, I will play him every once in a while.
Quan Chi.
D'Vorah: Probably my 2nd favorite new character after Cassie, I will give her a shot.
Won't try, don't care to at all:
Takeda: This guy's kit looks strong as hell, but I find him really lame when it comes to character design overall. He just screams "edgy too cool for school kid, with cyber suit and ninja shit with plasma swords in there just because."
Liu Kang: Never liked him, matter of fact I hate him. Annoying character.
Sonya: Just don't care for her at all, I find her boring.
Kotal Kahn: Cool looking, but his playstyle is not for me.
Ferra/Torr: Same as Kotal, just not for me.
Kenshi: Don't like him, ghetto version of Ermac no thanks.
Tanya: She was always a boring, dull, shitty character. Unless they completely rework her, I don't see myself playing her. If they do rework her though, is she even Tanya anymore?
Jason: No thanks, not interested.
Jax: Not my style, find him boring.
Jacqui: Expect her to be similar or inspired by Jax, not for me.
Kung Jin: Shit character, boring, uninspired, and I see him as the most boring character in the game.
Reptile: Always saw him as a second grade ninja, never liked him.
Goro: Not into the big guys.
No idea:
Erron Black: He has an interesting design for MK, we'll see how he plays.