I will second the GL6 recommendation. I think the Islander version is great. I'm sure the Kanile'a version, with all solid wood and their latest bracing is much better, although it costs anywhere from 6-10 times as much. My only real reservation about the GL6 is the neck width is pretty wide at 2". I could use slightly less width myself.
One guilele I'd really like to try, but doesn't seem to have left Asia, is Anuenue's S10. I don't know if it's ever coming to the States, but I'd be pretty interested if it did. And moreso if they made a slightly higher end all solid wood version. I think the S10 would directly compete with the Islander GL6, but it's such a drastic jump in price to the Kanile'a GL6, that I would love to see Anuenue offer an intermediate model closer to the Pono models.