So from the last post, I just flew with Japan Airlines for the first time. I flown with 4 different airlines. First I would recommend using a outside company. They have access to different flights or prices(especially if you are doing more than a basic round trip or if you have deadlines or times that you prefer to get there by).
But I flew JAL and it was good. But I say for the price difference, I would fly Korean. Now not knocking JAL at all, but they were quite a big price difference. I picked Japan airlines to experience and see what everyone was saying about JAL. I also have Hawaiian Miles, and I could use the miles because of the new partnership.