I voted other: Proper horn implementation = compression drivers that are not trying to cover too wide a freq range - means you end up with 5 way... Massive bass horn or tapped, Mid bass, Mid range horn, upper mid horn, tweeter.
No radiating soultion or hybrid can top them for me.
There is little point in focusing on just one area - that's not music reproduction. You need full range and each part to be top notch performance.
You need to follow all the good horn implementation rules - throat, mouth, length, resonance, time alignment, reflection and positioning to get good image and integration.