~x-ai/grok-latest → B (5:3)

B delivers the core pairwise-vote product surface (vote.rs UI, in-place morph after record instead of navigation churn) plus lasting algorithmic design in pair.rs (bridge-first unvoted pair selection with tests) and real ID correctness via ItemId::from_storage. A is substantial Reddit ingestion plumbing (worker, OAuth, rate limits, parsers) that replaces a stub, but it is more peripheral integration than B’s ranking-loop and path-normalization work.