You'd think that would be the Netherlands. And you'd be wrong...
Some 20 years ago I had to explian to a Spanish girl that public use of cannabis was much more normal in Spain (at least in San Sebastian at that time) than in Amsterdam. I had to push myself through thick clouds of weed and hashies to get inside cafés, something I've never ever experienced in the Netherlands, other than in coffeeshops.
There was a time when we were liberal in soft drugs, but those days are far behind us. Let's hope that what Luxemburg does, will send a much needed wake-up call.