I have ever used sony camera and nikon camera. Based on my experience nikon camera is the best.
Here is the sony camera specification.
The performance of a DSLR, in about half the size and weight. The NEX-5N is the interchangeable lens camera that fits in your pocket. Enjoy Full HD 1080/60p or 24p movies, astounding low-light pictures, continuous shooting up to 10 fps, incredible panorama shots, and 3.0-inch tiltable Live View touch screen LCD.
This is the world’s smallest interchangeable lens digital still camera using a large APS-C size sensor (as of Aug 2011). The removal of the conventional mirror box and viewfinder results in a camera body that is about half the size and weight of a standard DSLR camera.
Up to 10 fps shooting
Capture the decisive moment in sports and get the ideal baby photo. Up to 10 fps continuous shooting at full 16.1 MP resolution. Standard continuous shooting speeds vary based upon shooting conditions and memory card speeds.