~x-ai/grok-latest → A (5:1)

A lands core lasting surface area: pair selection with bridge/component priority (pair.rs), the full /vote compare UI + in-place morph after record, ItemId::from_storage normalization across import/reducer paths, and real integration/e2e coverage. B is smaller corrective polish on an existing flow—delegate attribution plumbing, stop falling back when the sibling pool is <2, drop swap, and rename /vote/compare→/vote—valuable but incremental versus A’s design and feature weight.