As MichelAngelo rightly says, there are differences emerging between the premium economy products.
In the third tier we have the likes of Eva Air, VS and BA who launched the product in the 1990s. But these carriers have made few changes in the meantime.
Second tier premium economy carriers include AF, JAL and Qantas. These carriers offer improved seating and a few more perks.
In the first tier we find the forthcoming products from ANA and ANZ. But before you get too excited, bear in mind that these improved premium economy classes will not be available for some time yet. ANA has postponed its product launch for a few more months. ANZ’s new premium economy isn’t set to appear before November (and then only on one transpacific route). It won’t be seen in London until Spring 2011.