Versus what I have now (Nexus 5): fresh battery with longer life, better speakers, 3GB RAM, fingerprint sensor, faster CPU, faster NAND. Not sure how I feel about OLED but am certainly willing to find out first hand!
I would love a nexus 6p so that I could get a taste of the better camera. The nexus 6 has a decent one to me but still would like to try the nexus new and improved one. Also would like to play around with the finger print scanner