If you're looking for a ready-made hammock, I recommend the Mosquito Hammock, Expedition model. If I were going to make one myself, this is pretty much what I'd aim for.
The materials and workmanship are great. So is the price. I have every model he's ever offered, and the Expedition model (IMHO) is best suited to backpacking and a few nights in the forest.
I think you'll find the "banana" effect in almost any hammock. You can do a lot by experimenting with different ways of pitching the hammock, finding your diagonal positions, and learning a few ways to arrange your legs.