I play open G, open D and double dropped D. I find that with those tunings there isn't a song I can't play...

My style: hard Delta blues...

My old unimproved style: not so hard, more folkie...

But these days it on the ragged edge...

BTW, the double dropped D (also called a D modal) is one spooky tuning and once you egt a few things figured out about it you can do some haunting songs... The kind where folks hair stand up... I do Blind Lemon Jefferson's "Please Keep My Grace Kept Clean" in it when I'm done there is a long sigh preceeding the applause... That's why I like that tuning... It has a eerie sound to it...

The nice thing about the open D and open G is that with a capo you can quickly get to other tunings when jaming... This can be real important. The open G capo'd to the 2nd fret now becomes an open A and the open D capo'd to the 2nd fret becomes an open E...

If yer playing click songs, which are all in C (jus' funnin'...kinda...) then by capoin' to the 5th fret from an open G will get you in open C....

Good pickin'...

Bobert