Galaxy much better camera.
I have a Nexus and I love it! The camera is better than my galaxies (I've had the first 4) the only thing is it's not commonly available with a provider or plan so my hubby and I had to pay the full $400 per phone for them.
Galaxy's are alot better than I phones in my opinion I have a galaxy and my husband has an I phone and my camera is alot better :)