For a while now at least it has been Sony. Even despite some of the Wii U hate it isn't nearly as frequent. Some Nintendo fans are just a little touchy and like to inflate it a little. Granted people are more likely to remember the issues that matter most to them, and the negative mentions really stick out in the mind, it isn't that hard to notice the threads that appear on this site when it comes to negativity. Things might shift, but for now Sony takes this particular cake.
PlayStation fans might be in the majority here (still not sure), but that doesn't mean they pump out more hate by default. Hate isn't equal or static among groups. All that matters is the number and frequency of bashing to determine the OP question.....so everyone who chose Microsoft, what site are you on? There isn't nearly enough mention of the Xbox on this site to qualify as the most bashed console. Maybe the least liked....but that title usually goes to the minority fan base (PC you are a meta console, enjoy your all encompassing fluidity)
Before the PS3 everyone was nice to me :(
