I don't believe there is any more negativity for Nintendo than for Sony. I see criticism for Sony everywhere, from the Move, to Playstation All-Stars, to continuing references to the PSN debacle. You can throw a cat and hit criticism for the Vita. Comments that the PS3 is a failure because it won't sell as many units as the PS2 are posted somewhere almost daily, despite how childish that argument is, and how childish it will be for anyone who says the same if the Wii U doesn't sell as many units as the Wii.
Microsoft gets less hate, sure, but the 360 dominates in the west, and it's a western company besides, so that's kind of understandable.
However, some Nintendo fans seem to be highly defensive, with a few even having something of a persecution complex. Worse than that, however, is the attitude of some fanboys that liking Nintendo makes them pure or special. It does not. There have been a few arrogant and conceited statements in this thread already that imply that people who don't like Nintendo franchises have something wrong with them. Personal taste is personal taste, and liking or disliking one genre or style is nothing more than that.
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