What is the highest rated game of God of War Ragnarok?

Excuse me, but could you possibly elaborate on the highest-rated game within the renowned God of War Ragnarok franchise? I'm particularly intrigued to know which installment has garnered the most accolades and critical acclaim from both fans and reviewers alike. It would be insightful to understand what sets this particular game apart and why it stands out as the pinnacle of the series.