I've had the Droid Eris, Moto Droid, Droid X, MyTouch 4G, Nexus S, and Galaxy SII. Also played around with my friend's phones since I'm the go to guy for people with phone questions among my friends. My daughter also currently has the GSIII.
Last year I also worked at BestBuy mobile around the time the Moto RAZR and Galaxy Nexus was released.
I've used tons of phones, and the Nexus 4 blows everything away. Extremely happy with this phone!