I use CGDGAD most of the time - extremely versatile,you can play in any key without capo,but it takes a bit of getting used to.
Its Robert Fripp,not Frith who devised CGDAEG - I use that too - its great but takes even more getting used to - and you cant use a regular set of strings.I recorded a version of R.Thompson's Vincent Black Lightning using that tuning,amongst other things.
Both tunings are good for trad music,which is mainly what I'm interested in.
Carthy hasnt used DADEAE for years - cant remember what he does use,but he has a bottom string down to B I think.

    Gordon