I don't see it as simple as pick one from the list. I use a hybrid approach. Colo the servers you need for the cost savings and performance. Then backup your da

I don't see it as simple as pick one from the list. I use a hybrid approach. Colo the servers you need for the cost savings and performance. Then backup your data to the cloud (Amazon S3) with server images ready to launch (Amazon EC2) if you have a major hardware problem with the colo.