Statement:
The level of criminal activities is lower in Angola than in South Africa

In the The Most Criminal Countries rating Angola holds position #13 ²⁰²² out of 139 and South Africa is #4 out of 139 ²⁰²².
Position of Angola is better than position of South Africa.
Both countries are leaders of the "The Most Criminal Countries" rating. So it is wise to avoid visiting the country or, at least, you need to take additional actions to protect your life and belongings, compared to most countries of the World.

Referencies:

1. The Most Criminal Countries ²⁰²² by Numbeo

   The countries in the rating sorted by 'Crime Index' in descending order.

   Angola	'Crime Index' value is	66.66
   South Africa	'Crime Index' value is	75.37