The channel is a good rule of thumb. For consumer isps eu-west should be faster in the uk. On continental europe, africa, and the mideast eu-central will probab

The channel is a good rule of thumb. For consumer isps eu-west should be faster in the uk. On continental europe, africa, and the mideast eu-central will probably be better. The notable exception is france, there it depends on the network as to whether eu-west or eu-central is less latent. Either way its normally +/- 20% or 5ms. Or just ignore all that and use route 53 latency based routing for your dns records. It will return the record for the least latent endpoint, per client.