Curiously, both Google and Apple follow the "MIT/Stanford" school of design (though Google has lately been trending toward the "New Jersey" school). And it's generally been working out for them. Microsoft was always the New Jersey school, and it isn't exactly working for them now, although it did for many years.
One thing my VP (at Google) said has stuck with me: "It's okay if the code is gross as long as it's hidden behind an API. If the problem's complex, that complexity should be captured in the code rather than forcing the user to deal with it."