Microsoft is a more successful console publisher than Sony. (current generation)

[Squilliam]

think-man said:
Whats weird is some of those Microsoft published games are multi platform.

Microsoft doesn't always take control of published I.P. whereas Sony almost always does. It is easier to negotiate with a studio when you don't want to own their 'child' so to speak. This is what helped Microsoft snag significant exclusives such as Gears Of War earlier in the generation.