How the comparison should run
Give both products the same repository, issue, constraints, and time window. Keep model settings as comparable as the products allow. Store every prompt and inspect the diff by hand.
Output quality
Replace this section with a side-by-side record of correct changes, regressions, manual edits, and test results.
Which one should you choose?
No recommendation yet. A solo developer, a team maintaining a large codebase, and a beginner prototyping a site may value different tradeoffs. Publish those branches only after the evidence exists.