IMOP, Resolution or MP Rating, is the single most important aspect of Digital Photography. It is well beyond any logical reason that I can insert as a counter. Our photographs are composed of the discrete pixels. I am reminded of that in every case when I am editing pictures. When we blow up an image to edit blemishes, we are looking directly at pixels of color that our cameras have created to represent the light that passes through the lens. I see the limit of current technology every single day. Most of my Models have lips, LOL. I have greater ability to edit when I have more pixels representing the same light as having fewer pixels. I am splitting hairs and I am doing it with pixels, always.
With that, the sensor is positively the HEART of our Digital Cameras. I am so sick of all of the FanBoy Supporters of inferior technology, which repulses me. Are people so naïve that adults can't see that the MP Opponents are merely attempting to provide cover for their favorite manufacturer's sub-standard sensor design? Yes the MP war is ON, and it is to the benefit of the Industry. Sure the race to produce sensors with greater pixel density has many obstacles and may in fact negatively impact other aspects of camera design. But those challenges are squarely for the manufacturers. I would like to reap the benefits of there efforts in lieu of hiding in the shadows of their incompetence. So give me more, and more MP!
The FanBoys love to stitch a Tale of Lens Resolving Power, a created design factor, as if it is somehow relevant. Get this, "Sensors receive light after the Lens". The lens has no idea which sensor is digitizing its very passive output. You seriously have the cart before the horse. No matter the output of any lens, it is preferable to digitize it with 10MP than 5MP (I know they will attack this) any and every day. Yes give me 500 pixels on a blemish instead of 250 pixels and I will thank you with a camera purchase. This is true no matter how low the DPI of your FAX Machines and Dot Matrix Printers that you use to submit your work to magazines, LOL.
Peek at this:
PUNDA!

Playing around, stitching together a panorama of a famous view from Otrobanda. 4MP! My dividing line was on the extreme right edge of the pink building. I needed smaller pixels. (More Density)