Elevated Compact Interchange
This is a very compact version of the gothic cross (Gotisches Kreuz[de.wikipedia.org]) interchange as seen in Detroit and Oklahoma City.
It features full connections without weaving. Ramps are all at 45°, which causes a small slowdown. Slopes aren’t maxed, so placement is quite easy.
The ramps are configurable: If more traffic flows to the sides, you can reduce the middle path to a 1 lane ramp, and upgrade all side paths to 3 lane highways.
Slightly smaller version
Slightly larger version: