The WORLD health organisations guidelines are set to include third world countries without sanitation, in which case breast would definitely be the better option.
But can anyone HONESTLY say that they can tell the difference between a formula baby and a breast fed baby? And later in life? Do you smugly say at work you aren't catching the cold that's going around because your mum breast fed you till you were 2? Do you think the top of the class kid is smart because they had breast milk? The top scorer in my school was formula fed. I was too and I'm a scientist now. I don't believe I've been harmed.
Kudos to everyone who breast feeding is working for. But it won't make your kid better than mine. She's going to save the world one day, don't ya know?