Which is supreme, Google's or Yahoo's ranking algorithm?

A foreign SEO expert summarized the subtle differences between Yahoo and Google ranking algorithms:

1. Link Diversity: Google values link diversity the most, while Yahoo does not emphasize this as much.

2. Meta Tags: Google has reduced the importance of Meta tags, whereas Yahoo still places significant emphasis on them.

3. Keywords in Domain Names: Yahoo places more importance on keywords within domain names compared to Google.

4. Yahoo crawls HTML comments (text and code enclosed in quotation marks), whereas Google does not.

Today, we will elaborate on these four points and conduct an analysis of the world's two largest search engines, complete with chart-based analysis.