If I win, I'd love to go for Lumia 950XL because:
1.Corning Gorilla Glass Screen.
2.Better Battery Backup.
3.Larger Screen Size
4.Better Processor(latest snapdragon processor).
5.Liquid cooling technology.
950XL.
Bigger screen to ease the strain on my eyes.
Bigger battery for snapping all those 20mp photos
Snapdragon 810 with liquid cooling system.
Size matters when looking to replace the 1520... and prevent an iPhone 6S+ from taking over my eco.
Definitely 950XL. The idea of downgrading from a 6in screen is hard enough to fathom as it is. A regular 950's 5.2 in screen would just feel cramped for me.
I would luv a Microsoft Lumia 950XL to rub in the face of my fellow co-workers and friends who follow the IPhone masses. Who needs apps when you've got the power of a PC in your hands!