Hmm. a tough one this is.. At PPGH/JWT amsterdam they not only claim that they thought of it first, but didn't produce it until later, now they also say that they gave the idea to their Irish sister agency. The irish ad was produced first. And I suspect, by Irish creatives rather than dutch creatives.
Then again, the dutch Heineken campaign is all about close-ups on the beer can as a visual with a witty line, and I have no idea how the irish campaign works. Still, i prefer the irish ad...maybe cause I'm really not that good at dutch..*grin*.