When other posters speak of Swedish axes, I assume they are talking about the big name current makers and their current models (GB, Wetterlings). While these axes are great medium use camp and "bushcraft" axes, they're perhaps not the woodchoppers that the early-mid 20th century American axes are, for a variety of reasons. What the current production Swedish axes DO have going for them is not insubstantial: quality materials, skilled and knowledgable employees, excellent marketing departments, and aesthetically first-rate finished goods. If they'd just put out a 3-3.5lb head with the right overall shape/geometry, they'd have the winner in the woodchopping area, most likely. Of course, name me more than one CURRENT US axe maker who is putting out quality product. The dilemma comes in that US users are more or less left to sort through yard sales and flea markets to find the "ideal" axe.
As is always the case, YMMV, and you don't have to put any stock into my words.