I mean here "You tend to be the best at tennis" "and "that you are best at tennis", "pick the e-book you like the best or best" both of these may have diverse meanings but "most" and A different adverb in a very standalone sentence has a very unique meaning. https://cashft853.howeweb.com/38584792/the-best-kpop-karaoke-gangnam-퍼펙트가라오케-diaries