comparing megapixel to megapixel, 0.something megapix to 0.something mega pix..which has a clear shot?

nokia? samsung? sony-ericsson? motorola? O2? the others?

for example:d500 vs. 6630 vs. s700i or d600 vs n90 vs. k750i, etc

im surveying for my 2nd (back-up) clearshot cam-phone below the 12,000 mark..which is which you can recomend: (may 6630 na ako,e)

Nokia 7610, 6600, 6230i
SAMSUNG d500, d410, D600, d510, e730?
SONY-ERICSSON K700i, Z800i, p900, p910, w800i w550i

wala ko trip na motorola, e....di ko kasi gusto layout ng software,e...