The Nexus 6 is a dumb idea. It's a huge screen, but it doesn't have the stuff that makes the huge screen good on the Note: the stylus and the multi-window multitasking. Without those a big display is quite pointless. It's even worse on tablets which is why I don't understand how anyone can like an ipad.
I have big hands, the Note 3 was the perfect size for me. Holding it and talking on it just felt natural, it's hard to explain. The notification bar was just at the limit of my one handed reach so it worked out nicely. And it was the best typing experience ever on a smartphone, including ones with physical keyboards.
When I had to switch back to my old S3 it felt like a toy