[danskil]

Are there any relative merits to standardizing on a www sub-domain versus standardizing on non-www sub-domain?

[mdolon]

There was a huge debate on this a few years back, however most of that seems to have died down now. Matt Cutts discussed it a few years ago: http://www.mattcutts.com/blog/seo-advice-url-canonicalizatio...

I think it's a matter of personal preference - just be consistent with whatever you pick.