Usually it is the stronger androgens that will give worse acne... i.e. dbol/drol, test, tren, halo. Also coming off can give you acne b/c of fluctuating hormones.
Ever since doing a cycle of Accutane 7 years ago for bad nodular acne, I have never had any acne since. Even on the gear, dbol, anadrol, nothing. Accutane literally changed my life and I am in its debt forever.