My choice is easy, if not available.
Warbonnet El Dorado...hands down.
To me, it is one of the greatest purpose-built hammocks around. It is a long-distance hiker's friend. It was the forerunner of the Blackbirds and lent many of it's characteristics to the Birds, while maintaining its lightweight status.
Very comfortable if you like snug, which I do
Lightweight; around 20oz if memory serves
Incorporated bugnetting that is never 'in your face'
I will admit, the Blackbirds did a couple of things better than the El Dorados; most notable IMO is the full length zipper. The pocket of the El Dorado gave way to the shelf in the Birds, which is great because that pocket and I don't really like each other so much anyway. The El Dorado gets the advantage for me primarily due to its weight, which comes in large part from the more narrow body. I just feel snug as a bug in the El Dorado.
I think there are a total of 5 in existence. One pops-up for sale on rare occasion around here, but don't ever expect to see mine unless Genuine Draft is selling off my stuff cause I got hit by a bus or something.