With some help from the EBS folks, I recently re-ran a report on the latest EBS environment that stores the seeded content that we ship to customers. The document here (sorry,I had to zip it), lists the reports and their publisher templates. The vast majority are still based on an Oracle Reports extract rather than a publisher extract. I can not say that 100% of the reports have a Publisher template but its close. Hopefully it'll be a useful reference.
For more information on the reports check the specific products' documentation.