I play Kotal.
1) Sonya. I can't learn this match because what usually happens is the match starts, we both back up to see if buttons are pressed, they move forward, they put their controller on the floor and begin to River Dance upon it, I hold R2 and desperately Bag for my life in the vain hope I'll block whatever invisible overhead or low happens, they Mercy Quit out of pity after beating me like a drunken, arthritic old opossum in a tumble drier.
2) Jacqui Briggs- See above, except I win sometimes because some Jacqui players apparently taste paint as one of their hobbies.
3) Cetrion- I have only played one Cetrion. I don't remember it very well... it was all spins and rocks and lasers and regret. All I knew was either Cetrion was real and in fact omnipotent, the person playing her was in fact My Daddy, or that character can take a flying leap into the jaws of hell, because no one should be that mobile with that zoning and those strings.