My first digital camera, and the first one I finally destroyed on the bike, was a Kodak DX4330. This was a basic 3.1 Mp camera.
The camera was VERY simple to use and almost every shot was sharp with excellent color and light balance--I don't know all the technical photo terms, and don't really care to learn them honestly. Don't have time, and it's not something I'm trying to get into.
Which brings up a point---I've taken thousands of photos with that old 3.1 Mp Kodak. I am very happy with the results. I found that 3.1 Mp was enough that I could still print an 8x10 with decent quality. 4x6 prints looked fantastic. The full-quality jpg files were around 1Mb at the high end.
So why does the average guy just wanting to capture simple life moments need 4, 5, 8, 10, 12 (and up) Mp?! I understand that gives you more pixels which allows you to digitally zoom in or crop (same thing really). With 10 Mp, you can print a big poster if you want--cool, but really, how many of your photos have you printed poster size? The thing I don't like is instead of having 1Mb files, these cameras today are spitting out files over 5Mb for one picture! Of course the professional cameras create files much larger than that---and that makes sense for a professional.
The average person today is simply taking photos to upload to an online photo album. The trend in sharing photos is online. The trend in cameras is more Mp and larger file sizes. These 2 trends are opposed to each other.
Anyway, through personal and work, I've purchased a few other cameras that are higher Mp and have very high ratings--such as a 5 Mp Canon PowerShot. With this camera, 2 out of 3 indoor shots was too blurry and/or dark to use. When I tried to get help with the blurry photos, people simply replied, you need to hold the camera steady. Duh. And truth is, if I'd set the camera on a hard surface or use a tripod, it did take clearer photos. Point is, though, I did not have to do that with my Kodak. I'm not exaggerating--almost every photo with that camera was a good quality shot.
I tried a Fujitsu camera that had some good reviews--for one day--photos were so terrible I returned it next day.
Last year, I purchased a Sony with a Carl Zeiss lens. Decent photos, but on average, not as good as the Kodak--despite kicking out files that were twice as large as the old Kodak. (And I killed it on this last Ozarks ride.)
Look, I know there is a lot more to photo quality than Megapixels--although that number is what the consumers seem focused on. One thing for sure--more Mp does equate to larger file sizes. If what you want is big files, then look for big Mp. If you want consistently hiqh quality photos, there is a lot more to consider. The lens is probably the most important aspect, but big names do not necessarily guarantee success.
I'm going to buy a new camera for my wife, and because of my extreme success with the Kodak (other than getting dirt in the lens motor), I'm leaning towards another Kodak.
I think I like the Kodak Z1275
One attractive feature (I think) is that it can take video in HD resolution with sound. Supposedly a 2Gb SD card will give you about 30 minutes of video in this mode. Reviews say the vid quality is not bad. I think my wife would use this to capture little video moments of our daughter, Rachel, who turned 5 months today.