Safer, I don't know. However, you Western Cape is more friendly to Whites as the Weather is approximately the same you will find in Italy or France (South-East)
Race does not matter anyway, even if the so-called Coloured people is well-known for their friendly-attitude.
The Pros :
- Weather (except Cape Town, may be. Paarl is lovely)
- DA
- Cape Town (economy)
The Cons :
- Language (except in Cape Town and Paarl, you should learn Afrikaans to do the basic things)
- Religious tensions (you will find the biggest muslim community in Western Cape. Some of them accept the western or african values, but some believe they live in Middle East and can be very arrogant. Some euorpeans leave europe due to Muslim zealots, and AFAIK the situation here in Western Cape is yet under control, but anyway, I dunno what will be the situation by 2020, for instance. I have nothing against Religion, just against Zealots)
If you want a well-paid job, you should consider Johannesburg or Pretoria though