Flightbliss.com, a new upgrade-strategy Web site from the publisher of First Class Flyer, calls Northwest Airlines the most comfortable seat to Hawaii. NWA is flying one of its new-generation international fleet of A330 planes on one of two daily flights from Minneapolis to Honolulu—its only domestic flight using the craft. The A330 has lie-flat business-class seats, winged headrests with adjustable-angle sides, and an on-demand, all-digital personal-entertainment system that offers 40 movies, 56 audio channels, and 6 video games.