X-23 Team

I’m new to the game and have been trying out the characters to see which team I want. The character I have enjoyed playing the most by far has been x-23 with the ankle slice assist. I like the character and the move set and definitely want her on the team (even though she isn’t competitively the best)

What I am conflicted on is the other two characters. I’m torn between Morrigan, Vergil and Doom. I’m leaning towards Morrigan with dark harmonizer/soul fist (would appreciate an opinion on which of these is better) and Vergil with rapid slash assist.

Is there any Noteworthy synergy doom offers in this team like his hidden missiles assist or are they around the same level?