I'd say Nintendo, because as a rocketpig has put it, they are the least sleaziest of the bunch.
Microsoft and Sony I loath fairly equally, but from an "Entertainment" point of view, Sony comes out on far behind. Their actions in the last few years (Rootkits on CDs, the Liksang lawsuits, general arrogance, etc...) hasn't gone down well with me. Sony will definitely have to impress me over the next few years before I consider purchasing any more of their products.
(Before anyone strings out a list of what MS has done recently, I did say from an 'Entertainment' perspective, so keep that in mind).







