They are difficult to find but you cannot beat a Taylor AB-1. Mine is loud, has a super neck and sounds really woody. The downside is they're expensive and the bodies are huge. Larger than any other ABG I have played but they move a lot of air. Love these.
I was looking for an AEB/ABG several years ago. I played a Taylor, a Tacoma, and an Epiphone El Capitan within a very short time frame. The Taylor was about $1800, the Tacoma was about $800, and the El Capitan was about $400. That Taylor ruined me. I didn't buy it, but I've compared everything else to it since. I have yet to hear anything that came anywhere close to it. Another downside is that they are somewhat fragile.