I'd go for a 950XL. Why ? Because I have an ICON now, and although 5" is a good size screen, a 5.7" is not as big as a 1520 but, a good chunk larger than the ICON.
And with the Unlocked version of the 950XL, I can try out carriers like TMOUS or AT&T to see if their coverage is as good(try Pre-paid) as Verizon where I work/Live before getting rid of Verizon for good.
Crossing fingers for this one, would really like a 950XL.....