Cognos / Business Objects / Microstrategy – which one is best?

Hi,

I am working in a Data ware housing kind of environment using Actuate erdpro.

I want to learn a new DW reporting tool to increase my CV value.

Out of these three Cognos / Business Objects / Microstrategy – which one will bring more chance of job?

I know Oracle and Teradata too.

How does business objects differ from Cognos business intelligence toolset?

I’m not sure how the two are different. Could someone please explain the application of Cognos BI toolset and its functionality VS Business Objects and it’s applications and functionality.