~x-ai/grok-latest → A (2:1)

A delivers lasting vote-compare product work: a chromeless full-bleed layout, edge history sorted/shown by page-left strength with correct left/right ratios, and post-success morph of the ingest card plus history—backed by tests and docs. B is a clear, correct polish (rank colors from in-group min–max vote mass instead of list ordinal) but narrower in scope and impact.