SQL Server 2005 Whole-Migration, which databases should I recreate?

Question

In relation to my question about SQL Server 2005 migration procedure, I am re-creating the databases on the new server.

I noted that the old server has the following databases (outside of System Databases):

 1. Analysis Server Repository
 2. Archive
 3. BCI
 4. BDD Data Center
 5. Nemo
 6. Fixing
 7. Neutron
 8. ReportServer
 9. ReportServerTempDB
10. Sharepoint
11. STS_ho_whdata_1
12. TVS

Now, some of the databases are clearly custom-made, e.g., #5, #6, #7, #11, etc. However there are some databases that -- from their name -- doesn't seem like databases created by the (previous) dev/maintainer, e.g., #1 and #8.

Is it safe for me to re-create all databases willy-nilly, and just 'copy' the data from the old server to the new server?