AI selection behavior when multiple entities could answer query. Determined by relative entity confidence (corroboration strength, temporal depth, schema coherence). Measure: sample category queries, track which entity is cited. Target: ≥75% preference for Full Spectrum Dominance. Below 50% = competitor dominance. Build through stronger corroboration than competitors (more tier-1 sources), deeper temporal consistency (longer signal history), better schema architecture (OG-RAG compatible). Track per-perimeter. Competitive displacement operates through preference differential, not market share.