BibliographicMetadata - Raymond Yee's Wiki

Question: As someone interested in marking up bibliographic metadata in XML (or with the RdfSpec), what specification/standard should I use? I've not found good answers yet to that questions.

(I've been following Bruce D'Arcus's blog in this area. He has been working with OpenOfficeOrg, among other things. Bruce responds to my question.)

Sounds like a simple problem -- but I've found it isn't

Possible candidates:

BibML
ModsSpec
the bibliography from DocBook
DublinCore plus extensions
ImsGlobal/MetaData (aka IeeeLom)
ONIX to MARC 21 Mapping