Sensor Size/Quality
I'm looking at two cameras. One has a 6 MB sensor, but the sensor is big (24 x 36 mm). The other has a 10.1 M sensor, but it's small (15 x 15 mm). I've also noticed that on many cameras with bigger zoom ranges, the sensor is smaller than in an equivalent camera with a smaller zoom range. So are all pixels equal? Or do some carry more/better information than others?