Hey Phil:
The yellow 53 generally carries the highest price point so, all things being equal, that could a be way of measuring which is most iconic. That said, I think it comes down to personal preference on what you love to look at most. Many here like the 144, even though that was double printed, and by rarity standards, should cost least. But I think the demand for that image increases its status, despite the quantity available.
WWG was the Canadian version of Goudey. There are less of these in the pop reports, but the price does not follow their scarcity. They often cost less than their American counterparts, and in my opinion, represent a decent value, relatively speaking. You just have to be OK with French writing on the back.
