I love the Xperia Z2 because... I mean just look at it, most of all I love the fact that they went with a IPS screen this time and dbrand did a really good job on the skin, superb quality indeed.
My favorite thing about the G550JK is the IPS screen, I've only used TN panels before... I feel like that guy who was sick when there was a new trend in elementary school and came back totally clueless.