I consider default Seam Project wizard and its default datasource settings (especially running on EAP 6) as confusing. I would suggest to have the H2 datasource (there is no hsqldb) as default option at last wizard's dialog. I understand that this is question about Seam and EAP versions. EAP 5 & Seam2.2 is ok with hsqldb, but this is not true when using Seam2.3 & EAP 6.
Next thing is when I don't specify any other datasource settings, I'll get datasource containing exactly the name of the driver (e.g h2-1.3.168-redhat-1.jar), which is not deployable. Why the default h2 driver (included in standalone.xml config) is not use?