I think the great thing about Koa is the sheer unpredictability of patterns nature can produce. Unlike flamed maple, where tighter flame is necessarily better, AA Koa, for example, can be flamed, rippled, curly, grafted, etc. I guess Taylor's stash of Koa is like a "box of chocolates", you never know what you're going to get...
Speaking of patterns, I'd like to call this particular pattern the "Shroud":