I have found that DADGAD tuning is interesting for the first fifteen minutes. It has distinctively harmonic limitations.

An interesting use of alternate tunings is David Crosby's "Guinivere". Does anyone know what that tuning is? Was it DADGAD?

My preference is for Pierre Bensusan who has explored this tuning to an art.

Even so, don't expect that tuning to fare well in the area of jazz,due to its inflexibility.

Joni Mitchell has come up with some interesting tunings also, probably her own and not DADGAD. "Micheal From Mountains" for example.

Here's another tuning to experiment with used to good results by acoustic jazz guitarists Karl Kress and Marty Grosz, Bb,F,C,G,B,D, the bottom four strings are like tenor banjo tuning and the top four (C-D) are like plectrum banjo tuning. This tuning uses the bass lines in chord progressions effectively.