I could probably give you my assessment after I get my S7 edge on 17march. I am currently having the 4gb ram/64gb model
But based on several web reviews the S7 E has the edge on performance  , camera shot quality. How much better n is it noticeable will depend on day to day usage
I will try put up a simple comparison as what I had posted between Nexus 6P, LG V10 and Mate 8
Your choice will ultimately depend which phone features are more important to you