Josh's problem is with the way MG put it. He framed it as "Mercedes vs Honda". There's a strong, implicit class implication there.
If you took price out of the equation and just looked at the two products, the comparison may be apt, but Josh is staring the price matter in the face and calling foul. I can't say I blame him. I drive a luxury brand car, but I cringe a little bit when people ask me what I drive because I'm concious of the fact that people associate brand, value, and quality.
A better analogy might have been artwork. Some people will look at the Mona Lisa and see a painting of a plain woman. Others look at it and see one of the greatest paintings ever created. But like Josh points out, the world is not black & white. Some will see the quality of the Mona Lisa, but will not care. They may like other styles better. They may prefer work from an entirely generation.
Josh is opposed creating class warfare out of device functionality. In my view, MG's assessment of iOS as "more polished" is true, and I happen to place a high value on that polish, but I understand that I trade other aspects of the device in order to obtain that polish. Others won't make that same choice. Others won't see the polish at all. That doesn't make those people better or worse than me. It only makes them different.