The comparison architecture connects data and leakage controls to the baseline harness, hybrid execution, and the final decision evidence. Circuit depth, shots, optimizer behavior, gradients, mitigation, backend context, CPU and GPU work, queue, cost, and unstable outcomes stay visible beside quality metrics rather than being summarized as a single best score.
Handover states what was observed for the tested data, software, circuit, backend, and budget, then names the replication or hardware milestone required for another step. A proceed, monitor, or stop decision is valid without implying generalized speedup, accuracy, economic benefit, or readiness to replace an approved model.