I really don't know how people could be 360 fanboys in 2012. In 2007 sure, ignorance was alive but I think by now everyone has seen through M$'s bullshit.
Biased PS3 fanboy here and with that being said I play my 360 more than my PS3 but that's only because my 360's modded and the games do look better on it than the PS3. But still their service sucks. They charge for everything.
PSN is free. I know there are people out there who say "Oh PSN is laggy, you pay for what you get" They clearly don't own a PS3.
I don't understand how you can be a fanboy to a specific console anyway, it's the games on it that matters.