The only successful argument I've seen so far against the 6 is the RAM, and only specifically related to internet browsing and using many tabs at once, something I avoid doing on my phone to begin with.
I guess the people who thought the 4 was the perfect size have a good argument against it too.
But the resolution and camera MPs and everything else, it's just talk. Until people start posting pics from phones showing how the camera in the iPhone 6 is so bad, it will be just that (I do believe though, certain phones like Lumia 1020 hold noticeable advantages, but your average Samsung whatever that happens to be 10 or 12 MP I'm not convinced). Same for resolution. Different types of displays make resolution look better or worse. It's hard to compare resolution across different phones, especially when it's at such high DPI already. It's not like one device is 320x240 and the other is 720p... both devices can output pixels small enough that discerning individual pixels is difficult. I know I have absolutely no complaints about the ~720p resolution on the iPhone 5, it's nothing like the pre-retina resolutions where you could easily see the pixels.
It's well known more MP doesn't equate more quality, and the specs don't tell the whole story.
It's not condescending, if the phone runs everything you throw at it flawlessly (exception so far being tabbed internet browsing), takes better pictures than phones with more MP, and so on, on what grounds does the complaint stand?
