For some commercial results in Russia Yandex is much better then Google. For my point of view it is true. Иut outside of Russia google is the best
It's like to compare small regional company (which know the best way to resolve problem of this region) and a big transnational company. Searchengines from different league
I faced one interesting thing some month ago - my PC and also mobile told me that they can't use Google Search in general because some automatic request is sent from my side (but it's false). So I used to do hard work to stay with my favorite Google
Decidedly, Google if the best choice. Yandex is a Russian search engine and it understands russian language better. Also, In most cases Google is much faster at indexing new pages. Also Google prefers sites which update content more often. In front, Yandex does not place as much importance on this factor. As a conclusion, I can say that Yandex prefer static sites and Google dynamic sites!
The Yandex is a search engine which is better for Russian language search! I know Yandex malware detection is better than Google's!