I agree with all your points, I personally don't own a Xbox, by the way, the option to change your gamertag is also huge lol, it shouldn't be, but because of sony it is.
Anyway, I bought the PS4 at launch, because, it was the better console especially with how the Xbox was originally promoted and launched. Hardware Wise the PS4 is currently still the superior console. However, software wise and support wise especially with Backwards Comp working like a champ, and even improving many games.
It would be a difficult choice for me to buy a console if I didn't have one and the decision between Xbox One or PS4 would be close.
For me however, Next year I will enjoy all the console-experiences on PS4 and when the Scorpio Launches, I will switch from PC+PS4 to the Scorpio instead of upgrading my current PC. So I will join in all the good support you already have next year, but I am glad you are seeing (as many are) that Xbox is on top of support right now.
If they can get some of the Third party games (like NioH, Persona and stuff) on Xbox One and make some good exclusive deals and deliver with the Scorpio (which I think they will, since the amount of memory WILL make a difference, its proven on PC and whatever works on PC seems to work on consoles these days) I think Microsoft will really start catching up in 2017-2018
:)