wrong the s3 battery last longer than the 5.
Picture says a million words:
"In the LAPTOP Battery Test, which involves continuous surfing over 4G at 40 percent brightness, the iPhone 5 lasted 7 hours and 13 minutes. That's longer than the Samsung Galaxy S III (6:55) and over an hour longer than the smartphone category average. The Sprint iPhone 4S running iOS 6 lasted 5:54. However, the Droid RAZR Maxx is still the endurance champ; it's 3,330 mAh battery lasted nearly 8.5 hours."
it has 9% less pixels than the g3. it only makes it up cause its smaller. bigger screen its a win. how we see it is an opinion.
also, g3 does more than a 5 can do.

imp:
CaliCal, i agree that Android provides more customizations & widgets. That's cool. (Unfortunately for me, widgets killed my battery on Nexus S 4G...because some of the apps were not ICS-compliant, e.g. Weather Channel widget.)
As for screen, yes, the GS3 has a much bigger screen. For some, that is good; others, that is too much. I belong in the latter camp because i carry my phones on my hip via holster (see Otterbox Defender). The iPhone 5 and Defender are already approaching limits of comfort when getting in and out of my car.
Although your SAMOLED screen has nice resolution (720p) and big, it still fails in terms of color accuracy and battery draining. The color pop (which is very good for some people) and bleed (bad for everyone) are ever present. Samsung keeps on ramping up the color saturation with every version of OLED...probably to wow people on first encounter. But, as noted in DisplayMate testings, SAMOLED is far behind IPS LCD (esp. Apple iPhone 5) in terms of crispness/sharpness and color accuracy.
In addition, Samsung still uses PenTile subpixel layout. Want to know the difference?
This is an extreme example to show the point. This is a picture comparing the PenTile Super AMOLED display of the One S with the RGB stripe Super LCD 2 found on the HTC One X. GS3 screen is a bit better than HTC One S, but this is why people do not like Pentile display.
The reason Samsung is still using PenTile display (despite others moving away from it) is that it gives a brighter display and apparently slow down premature OLED degradation, which is a very significant problem with OLED.
The bottom line is that iPhone 5 display is state-of-the-art (screen & touch sensor in one) and gives a much better (more accurate, less reflection, and sharper; thus Retina Display) picture than SAMOLED. It is simply a better display. But, yes, it is smaller than GS3's display. Size is the only thing in favor of GS3's display.
EDIT: according to CNET article:
"With HD Super AMOLED, Samsung seems to have backed away from Super AMOLED Plus, with its RGB layout, and returned to Super AMOLED and its PenTile subpixel array -- a move that's disappointing some followers. Plenty of CNET readers and other smartphone enthusiasts have complained that Samsung isn't putting its best technology forward, reverting from the "Plus" screen in the Galaxy S II to the regular PenTile screen in Sammy's next flagship phone, the Galaxy S III.
Although Samsung didn't comment for this piece, an employee of Samsung America (but not Samsung Display) has said elsewhere that Samsung selected PenTile for its durability. In addition, Samsung calling the 1,280x720-pixel PenTile screen resolution "HD Super AMOLED" is a marketing exaggeration that can mislead consumers, says DisplayMate's Soneira, chiefly because of those fewer subpixels than a standard 1,280x720-pixel RGB high-definition display. While the naked eye may not notice the difference in photos and videos that are inherently fuzzy, the much smaller number of subpixels is noticeable in the presence of fine text and graphics, Soneira maintains, particularly if they're colored.
So while HD Super AMOLED is certainly HD by the definition of resolution, it's not necessarily as fine as other screens. PenTile does have its pluses. It's cheaper to make than Super AMOLED Plus (Samsung can then pass the savings on to you) and it has some battery-saving efficiencies, since there are fewer subpixels that the battery has to power."