Its the kids who spent all day arguing in playgrounds over whether their Speccy or C64/Megadrive or SNES was better that have grown up and started the wars all over again to relive their youth.
On a serious note, the blogs wouldn't be an issue if fanbases didn't take all the crap they post as gospel. By and large I agree with all your points, including the fact you're biased (thats ok we all are). I didn't understand the whole people screaming Natal will be amazing, by and large any hyping of that technology I see on here is after someone trolls a thread claiming its Eyetoy 1.5.
I think you've actually put so much in your OP, the debate will be hard to keep on topic though as people will be diversifying a lot replying in here, good luck steering the conversation.