Brazilian Jiu Jitsu Gear Who Would Win, A B. Jiu Jitsu Fighter Of The Same Class Or A Wing Chun Fighter?

Who would win, a B. Jiu Jitsu fighter of the same class or a Wing Chun Fighter? - brazilian jiu jitsu gear

And who would win in a fight without gloves, protective equipment, no rules or reff? A practitioner of Brazilian Jiu-Jitsu (from a higher degree black belt + w / e), or a professional Wing Chun in the same class, but the professional has experience in Wing Chun, Muay Thai, too little? Both are about the same height and about the same weight.