EPC Vs. PPMN, What and When?

Dear All

Trying my best to deliver the best value to our customer in a short period of time. I need help guiding me through the key difference and brief description of the following (Examples and external links are more than welcome):

- Differences between modeling processes using EPC Notation vs. BPM Notation 2.0, and recommended cases for using each

- Difference between Process maps, Workflow diagrams, Process guides, Operation guides and Standard Operating Procedures (SOP's).

Thanks a lot in advance