SQl 2014/2012 Mirroring or Clustering.....

Dear Team,

As we already have SQL 2008 R2 mirroring environment on Windows server 2008. (Primary, Mirror, Witness), want to change the architecture to new environment and HA and DR. 

For example SQL 2012/2014 and Windows Server 2012 or newer. We prefer Clustering instead of Mirroring as our system not have huge data. 

Could you please guide me , which version of SQL Server i can go for and Windows Server. Your ideas really appreciated..!!

Thanks,

Rathan.

Y.K