I think that artistic direction wins by a huge margin against any technical prowess.
Between Sony have more (imhoà titles that qualify for my above statment, at some point it's really about money and how much a systemt costs.
I agree with "I don't remember which video game site" about E3 and relative editors strengths, Sony is the biggest player in this regard. They have a lot of high quality IP, they don't have adapt in this regard, eye candy are a "plus" /added value but it's already there but at this price it doesn't cut butter.
Sony doesn't have to change how they do thing, they know how to provide creative and brilliant people but price... (nothing to add here...) a thing that Nintendo doesn't even try to do and Ms has been pretty far to achieve. Sony / their horrid PR know and respect artists they know how to keep a brilliant team going, manage talent, have some clue about freedom, etc.
Price... I can't add anything more after years of nevertheless interesting talk and speculations.
KK may have a point Sony is failing on hardwre (on losing grip) but they know so much about content and peiople making it! The talk about Sony leaving hardware market xould make sense depending on how things are going no matter this is possible or not I wouldn't be scared about Sony succes as an editors, they are already the best out of the bunch imho keep brilliant people is not about money and Sony knows what it is about that's for sure.