lol galaxy s6 no doubt, the xperia phones are a joke. Always late on the newest features, and no innovation throughout the z series smartphones.
Galaxy S6, many problems with broken screens with the Z3 and no quarantee from Sony. Galaxy S6 has also beter sync-possibilities with other devices.
the galaxy 6 is really amazing i was surprised i don't have it but my friend does and i wanna switch now
depends what you want... z3= better camera, display, remote play ps4, water proof s6 = more modern design, faster processing
Been with Xperia for a while now. I like that Sony is keeping the mircoSD card slot, unlike Samsung that gave it up.
i would go with the S6. But then again i am just a die-hard android fan. If you order the phone form the company you can try it out for 14 days. and then return it and try the other one if you are unsure which you would like.