swa66 - 11:11 pm on Nov 20, 2009 (gmt 0)

I author everything in xhtml for it is far more strict (hence my code doesn't contain unexpected implicit closes (they still happen in html 4.01 strict).

In addition it means the content can be parsed as if it is xml: I can use tools to manipulate xml at will on my xhtml to e.g. make changes on a site wide scale that I failed to anticipate in my server side includes: I can still do them easily enough no matter how complex the get without having to rely on a html parser.

html5: there is still xhtml5 as well. so you do not have to choose between xhtml and html5: you can have both.