[t0mas88]

I'm still with Dyn because their performance is ahead of Route53 and their health-check and failover functionalities are at this moment better than Edgecast.

However, we're using Edgecast for some things because the prices are much lower and they are actually capable of doing the same kind of health-check, failover and routing tricks at Dyn does. Their interface is just not fully ready yet so you have to email support to get changes and custom rules.

EDIT: Very quick non-representative test from 8 locations around the world shows Dyn responds faster than Google DNS in all of them. Note that these were datacenter connections so it could be very different for lower-bandwidth end-users.