Answer:
I don't get how one can be better than the other when they're both under Mexican Mafia's control. I know Mara Salvatrucha aka MS-13 is a Salvadoran gang but that Salvadoran gang is controlled by the MEXICAN Mafia which is why they use the 13 at the end of their name. Eighteen St. has been under Mexican Mafias control from day one that's what most people get confused about they think Eighteen St. & MS-13 are their own alliance(which they're not) they're their own gang but they are under the Mexican Mafia........
*the Surenos are another gang under Mexican Mafia's control(most people think Sureno is it's own alliance) which again they're NOT u can't just bang Sureno without showing homage to Mexican Mafia