.Take a test shot of the scene/subject you want to photograph, then look at it on your LCD. Observe how many blinkies there are, and what part of the scene is blinking. Then note whether there are a lot of little tiny areas blinking, or if there are big massive areas blinking.
You might also take test shots with each camera to test the accuracy of the blinkie function. My G15 produces "false positive" blinkies. Some blinking areas are data-free, as intended. On the computer screen, they'll be pure white. Other blinking areas will be almost completely blank but not quite. With my simple PP program, the proof that they contain data is that using the eyedropper tool on them moves the Temperature and Tint sliders.