Over the years I have owned Canon, Nikon, Pentax, Olympus, Panasonic, Fuji and now Sony and they all took/take very nice pictures.
How right you are Classiccameras. A long time ago in digital speak (2005) I purchased a couple of Fuji E900 pocket cameras with 9Mp sensor. My wife has used it and in one of her books one of the E900 images covered A3 size with gusto. I love my new NEX-6 with the built-in EVF. It could never be made so small and capable with OVF covering the full zoom range. I have a back problem and Sony have revolutionised my photography. I still have Alpha equipment, namely A550/580 with CZ 16-80, Sony 18-250, Tamron 10-24 and FF 70-300 motorized. Mostly this lot stays at home. My bag consists now of NEX-6 with 16-50 pancake and NEX-5N with 16mm fitted with W/A converter. 55-210 zoom is loose in the bag. For everyday use my Panasonic LX5 has been cascaded to my son and replaced with Sony's RX100. My thanks go to Sony for having enabled me to increase the quality of picture making from a decreasing size and weight of equipment.