I'm more used to SF's mechanics, but I prefer MKX to SFV as well. I think I can help simplify your character selection though.
Why pick...
Cammy - Immediacy, priority, closing skills, and misdirection
Necalli - Power, pressure, defense, and a powered up state
Ken - Pushback Hands, Running, the best special in the game, and versatility
Ryu - Best Defense, Midrange King, great normals, and versatility
Birdie - Good at both zoning and anti-zoning, power, and great normals
Bison - (charge) Great pressure, best V Trigger, best normals, limited defense
Chun Li - Best pokes, best pressure, great normals, limited moves
FANG - Great zoning, most elusive, best V skill, great mobility, great V trigger
Nash - Best from 3/4 screen, safe specials, specials that combo into more specials, best super