I don't understand this knock on Samsung software. Is it solely because they didn't shave down and optimize TouchWiz enough (despite cleaning up and streamlining things significantly from past iterations)?
Because Samsung software has influenced a lot. Multi-window is a sought after feature. Hello S-pen? Weren't they first to do quick toggles, too, (not sure on that one)?; or at the least, first to allow you to customize them, no?
Plus there are things like Smart Stay that works effectively, and pop out windows that really show the prowess of the hardware (I've said this before, we're approaching desktop-like functionality on a smartphone in the palm of your hands). Pop-out feature essentially lets you "minimize" apps, like minimizing windows on a desktop, to do things in the background.
How about power saving modes? And ultra power saving modes? Weren't they first to that, too? Or features like wave to wake the phone, and all those other gesture-related things? Or how about swipe left on a contact to text, or swipe right to immediately call -- wasn't that their feature first? Weren't they first to do one handed mode, too, where you could essentially shrink your entire screen left justified or right justified to help during one handed use?
There are probably other examples of new or interesting takes on their software-end. And while not everything lands successfully (again, what does? Apple Maps, anyone?), there's still no denying they're doing influential things on the software front.
And if it is solely just because Samsung can't manage RAM properly or haven't shaved TouchWiz enough, well, like Jamerz said earlier: at least they're on the right track. Reviews and users all around have praised Samsung for toning down TouchWiz this year. They could've gone further, sure, but they're not sitting idle on it.
Unless there are other reasons that aren't apparent to me why we're disregarding Samsung's software....?
EDIT: I also forgot to mention, their camera app is superb.
EDIT 2: They also do innovative software when they come up with hardware advances. The Edge has its unique set of special features. This is new hardware and software in its infancy, but still new.
Again, not saying they're kings of software and software innovation, but they're not nobodies either. Heck, they're influencing both Apple and Google.