I’d really like a “shortest edge” bias for left-right/top-bottom layouts that minimizes the length of edges regardless of where they appear in the diagram. I rarely have a diagram where everything is best visualized shifted to all the way to the left or right, there’s usually a one-off in the middle in either direction that gets stretched way out of view.
Left bias, showing disagreeable node far separated from its closest relative
Same diagram, right bias, showing disagreeable node
Why not something like this? (faked with Photoshop by moving E and H closer starting from the left bias version, which shrinks the length from B to I appropriately)