Tried at store:
Yamaha p225b
Casio px-s1100
Roland fp-30x
Kawai es120
The Yamaha sounded the best (g.piano, their sampling is a step above)
The keys are all fully weighted hammer action keys for all model with Roland being the most consistent between black/white keys
But the faux Ivory/Ebony rexture on the s1100 makes it a joy to run my fingers on.
The headphone nerd in me says Yamaha
The mechanical keyboard nerd in me says Casio