I really do like both the Note 4 and 6+, I traded my Note 4 to my dad, because he didn't like iPhone 6+ that I got him for Christmas. He's old and retired and like the Easy mode and S pen.
So I ended up with a 6+, unintentionally. I like the Note 4 10x better than the iPhone 6+.
The 6+ is like trying to hold onto wet soap. (I don't use cases)
I'm just ready to go back a little more 1 handed. My fav device of all time was the 2014 Moto x at 5.2" but the camera was so horrible that I couldn't keep it.
I will give the 6+ that much. The camera and software is better than any phone on the market IMO. Better than note 4 even.
I hope this new sensor in the S6 will be something special. I heard it was an improvement over the sensor in the Note 4.
And, to be honest, I have a bit of a new device fetish. I won't have the S6 longer than 6 months. I will have the Note 5 if nothing else comes out better between now and then. HTC isn't even a consideration after seeing the M9. motorola.... ? we'll see.