I think the blindfold test is a good one, and many people are influenced by how a guitar looks. But also important is how it feels in your hands, is the action comfortable, is it easy to play and hold?

I have to admit I am biased as to brands (and also I definitely prefer a WARM guitar over a BRIGHT one) so I think you can't go wrong with a Martin . Can't go wrong with a D28, but many of the "o" series are really FINE. A well made Gibson is also a joy.

I may get capoes thrown at me for this bias; but I don't understand the attraction of Taylors- too bright, too tinny for my tastes.

That's my 2 cents and I'm stickin' to it.