El Paso is directly across from Ciudad Juarez, which I think is one of the more dangerous Mexican cities?
So because of that, South Bend. Mid-sized cities are also generally better.
I don't want to live in El Paso because I don't know any Spanish which would greatly ruin quality of life in this area.
However El Paso is one of the safest cities country and it used to be very high in the 2000's almost reaching levels only found in rich orange county cities. It has risen up a bit since then but overall it still is one of the safer cities in the US. Infact South Bend has a 5 times higher murder rate than El Paso Texas.
https://www.nwitimes.com/news/national/here-s-a-look-at-the-cities-including-in-indiana/collection_542dfcaa-f2ff-53bf-8e0a-fd36fa10fc60.html#3