What is the strongest continuation for White?

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. Craig Foose

8 7 6 5 4 3 2 1 a b c d e f g h +2

(white to move) 1. Nf3 a5 2. e4 c6 3. d4 b5 4. c4 a4 5. cxb5 Qa5+ 6. Bd2 Qb6 7. Nc3 Bb7 8. Nxa4 Qd8 9. b6 Nf6 10. Bd3 d5 11. e5 Ng4 12. e6 f6 13. Bxh7 Rxh7 14. Qc2 Qc8 15. Qg6+ Kd8 16. Nc5 Rh8 17. Qxg4 Na6 18. Nd7 g5 19. Nde5 fxe5 20. Nxg5 Ke8 21. Nf7 Rh7 22. Nd6+ exd6 23. Qg6+ Kd8 24. Bg5+ Re7 25. Bxe7+ Bxe7 26. Qg8+

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Pawn promotion:
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