[Galaxy S 4 General] GGXtreme:
The fact that Samsung seems to be listening to their customers (unlike HTC), is what does it.

Advantages of the One:

-Premium build, subjectively better design

-Camera optimized for low-light environments

-Screen is objectively better at accurate color reproduction

-Stereo speakers

...

Is that what customers want? Some, sure. But it seems like HTC is playing Apple's form > function game. And they won't win, because their software, battery life and camera are not up to par.

What does the S4 have?

-Packs a larger display into a body that is smaller, slimmer and lighter than the S3 (yet people will still go around complaining that 5" is 'just too big'), more ergonomic than the hard edges of the One's design

-Display benefits from power savings of PenTile matrix while the resolution nullifies any complaints about its perceived sharpness; EDIT: actually, the display utilizes a new, brighter PHOLED technology and a completely different PenTile 'diamond' matrix that seems to address most complaints about the S3's display on their own

-Display is subjectively better then the One's for some—AND has built-in screen tuning options for those that want accurate, natural colors (Movie/Cinema mode on the S3/Note 2 is comparable to sRGB emulation mode on a wide gamut monitor in my own side-by-side comparisons)

-Display's infinite contrast is objectively better, and the lower reflectivity and sunlight legibility is something other manufacturers have fallen behind with their 1080p displays

-Superior homegrown SoC (although I have no idea why the U.S. is stuck with Qualcomm again with all the new LTE tech the Exynos chipset has); people knocking the big.LITTLE architecture seem to be ignoring the purpose of it (it's not just 'twice as many cores' or 'not-really-eight-cores')

-1.7mm thinner than the One, yet it packs a larger, removable battery and microSD slot (deja vu)

-USB 3.0 on the Exynos

-TouchWiz is better than Sense, despite subjectivity over appearance: lighter, smoother, less buggy, closer to vanilla Android in functionality and packed with extra features (many which are actually useful) that can be easily turned off—vs. a bloated interface that tries to undermine the Android interface and sticks you with homescreen limitations like a Flipboard knock-off that can't be fully disabled; I personally find Sense even uglier than TouchWiz with its mix of colorful icons and flat black theming

-A camera that, for another generation in a row, doesn't ruin its image quality with overaggressive noise reduction and processing like HTC's offerings, while packing as many features as one would want into the camera app (like the ability to make animated GIF's with static backgrounds easily)

-Battery life that is sure to surpass its predecessor, unlike the lackluster battery performance seen in the One/Butterfly/DNA

-Gorilla Glass 3 over the One's Gorilla Glass 2

-Unified delivery to all carriers, while the One's future on a major carrier like Verizon is still just rumors

-Latest JellyBean 4.2.2 vs. One's JellyBean 4.1, and not only a much better commitment to and delivery of updates than HTC, but a commitment to and delivery of bringing new software features to older flagship devices when they don't depend on new hardware

-The ability to run ANY two apps side-by-side on the screen at the same time for multitasking—and the ability to run pop-up apps like the browser, video player, calculator, etc. on top of that

-Not only are features like the delivered Air Gestures and Eye Scroll useful and polished (maybe not so much with Eye Scroll's polish), but Floating Touch is major: completely new and unique screen tech that essentially gives you a mouse cursor for hovering, which is a boon for web browsing and Adobe Flash

-Unlocked bootloader vs. the One's locked bootloader (despite all the negative feedback HTC received previously)

While the S4 might not blow anyone away at first glance, it's clear that Samsung pays attention to things that matter when it comes to using your device, down to the details that everyone else seems to overlook. The One is a beautiful phone to look at and hold, but beyond that it holds the same disappointments that held HTC back the last time around.