Mono & braid are both good for fishing a jig. I don’t use braid because it has the visibility of a light bulb in a dark room. I would stick with an abrasion resistant mono. I would use 10-12 lb. for light cover jig fishing, and 14-20 lb. for the heavy cover (where the big boys stay).
May i also say, i have had great luck with a “Bass Pro Shops Pro Enticer Football Jig” with a “Berkley 3″ or 4″ Chigger Craw” trailer. My all time favorite jig color is PB & J (Peanut Butter & Jelly.). For the jig, i like both the 1/2 & 1/4 oz. sizes. For the 1/2 oz. PB & J jig, i use a 4″ Berkley Chigger Craw in pumpkin green. For the 1/4 oz. PB & J jig, i use a 3″ Berkley Chigger Craw in pumpkin green.
Happy fishing.