Which is the best backup solution product for windows server 2012 and vmware esxi 5.1 ?

Symantec Backup Exec

backup exec, EMC Data Domain for Enterprise

vSphere data protection 

As told, Veeam Backup is good for VMware ESX and Symantec Backup Exec is good for Windows Server2012. But then every organisation has their own requirement which needs to be looked into before arriving at this decision.

Veem backup tool is good for vmware esx and symantec backup exec good for normal backup.