Well Androids are glitchy messes and the apps normally suck, so that's out of the picture.
iPhones are fragile, small, and have the most boring, awful GUI ever. So I don't want to go that way either.
My wife is going BlackBerry Q10 in July so I'll probably go Z10 unless there's some insane HTC Windows Phone by then.
I would be interested in a Nexus version of the 8X though.