Ok, some random thoughts....
Acoustic works on two levels for me. One is sheer guitar vrituosity, such as Jorma's Quah album or on the first Hot Tuna album. Or, any of Leo Kotke's albums. Actually, Jorma's second album, "Jorma", has some real nice songs, too, although there's electric guitars on it there's no drums or bass, so the songs come across as acoustic.
Then, on another level, there's the pure songwriting thing. Leonard Cohen is incredible, Tom Rush is another one in that league. Steve Goodman was all too short in this world, and John Prine has killer lyrics with such a wry, sardonic delivery.
Most people are probably familiar with the live, electric version of "24 Hours At A Time" by the Marshall Tucker Band, guaranteed to get you a speeding ticket if you're driving while listening to it. But the original studio version is a more laid back acoustic rendition that's absolutely out of this world to kick back and listen to on a porch in summer. I've also been listening to a lot of Fairport Convention, lately. Richard Thompson is another incredible guitarist. I've really got to find some of his solo stuff. And, next Friday, I'll be seeing David Bromberg in concert. Can't wait to hear what he's been up to. Ahhrrgg!, now I'm have to go down into the basement and start digging through the old albums and find some of the old gems I've forgotten about. Thanks alot, BCL!