TM 9.0 Report capabilities. Our customer don't want to use BW for reporting. What others reporting scenarios do we have in TM?

As far I know TM 9.0 offers 3 level of analytics and reporting :

- Embedded analytics (for operational reporting, like carrier evaluation) via the feature "Business Context Viewer";

- Reporting on TM data via SAP BO (aka Transportation Cockpit in the Netweaver Business Client)

- Standard SAP reporting logic via Business Information Warehouse (infocubes and query)

What are the main differences between these 3 levels of analytics and reporting implementation scenarios? Is there any document with the reports detailed content for every scenario?

I appreciate your thoughts about this topic.

Thanks in advance!