Will Mcdonalds Burger Rot Faster Than Burger Kings Burger?

This experiment has been done and it appears that they are both very close in timing.  The McDonalds burger in this experiment began rotting first, but the Burger King one was right behind it.  You can see the experiment here: youarenotafitperson.com/2010/05/01/does-fast-food-rot/

They are both equal in rotting

They are equal and they both make you fat

I think they are both similar and will rot in about the same time.