Comparing the features of the four is not the right approach. You need to develop a list of requirements for backup and DR that are specific to your organization and then compare each of the four products to those requirements. All the products you have listed do very well…

Edd, You have asked for opinions on backup products without providing any of your requirements. All of these products are good within certain circumstances, all of them have a cost model. What I and anyone else that would help you on a consultative bases would need are:…