Respectfully, I disagree. Google and Bing both deliberately pollute their own search results based on advertising and SEO. This is a user-hostile practice that they can get away with because of inertia and oligopoly. At some point, they will become so user-hostile that an alternative will become appealing.

For example, a search engine that made a good-faith effort to filter out SEO-optimized junk like listicles and slideshow "articles" would be extremely interesting to me. Bonus points for allowing me to permanently blacklist entire domains from search results.