That's a somewhat broad price range, there.
Staying closer to $500, I recommend the Martin X-Series. When I was shopping acoustics last year, I was mainly looking at 12-strings, but both the 6- and 12-strings in this series really impressed me. Very playable and even-sounding for such a cheap guitar. They look a little odd because the neck is some kind of manufactured composite wood, but I had a hard time putting them down. I found them way more enjoyable than the other guitars I tried in that price range.
Seagulls (made by Godin) sell for a little more, but that'd be my other recommendation. No funky woods in those, just very nice resonance and playability. You can't go wrong either way.
Once you go above $1,000, you're in Serious Guitar territory and have tons of choices. Everybody seems to love Taylors, but I find them a little bland (might work better in a band mix).