These Carolina Huskers are US6.5EE, and the Aldens are marked US6.5D.





You'll notice the Aldens are flatter at the toe because of not having the steel toe but they also seem slightly longer. This is partly due to the sole extending further out than the sole on the Huskers.
The "Inside space" of the 2 shoes is very similar, I must say both are very comfortable, but the Aldens feel like a shoe when you put them on, very comfortable. You do notice the rigidity of the shank in these boots.
The Aldens are also noticably heavier than the Huskers, perhaps 30% more so.
What would I buy given a chance again and new at full retail and exact fit a shop? I'd go for the Huskers, they are darn good value and good strong boots.
I'd only get the Aldens if money was no object and you really have to be screen accurate, currently, for me at least, they have priced themselves as too much of a luxury. Under US$150 I'd think about it. (As the price is currently $290 that's way out of my shoe budget!).