IMO, (take it for what its worth...) the Dundee is one of the only shoes that AE makes that is comparable and maybe even a little better than Alden.
The Alden will definitely be finished better and more sturdy in overall design. But, as others have noted that Alden Cigar Chukka is typically not available.
The Dundee has the 3 eyelets and is on the 1 last, which is a little more aesthetically pleasing IMO. And it is available.
One thing you can do and has already been suggested, is buy the Dundee and wait on a list for the Alden. When the Alden comes, sell the Dundee on B&S...
In all seriousness, the Dundee is a great boot!
Warning: Spoiler! (Click to show)