Depends on the setup and what your goals are. Anycast typically takes the shortest route based on topology. This is particularly nice when you use something like caddy (because of the huge plugin system, you can do lots of stuff directly on the edge) to build your own CDN by caching at the edge or go all in and use caddy-lua to build apps at the edge. Gluing together dns systems (health checks, proximity + edge nodes) can be similar but the benefits of being "edge" largely go away as soon as you add the extra hop to a different region server.