prefer の前置詞 (3級超頻出ミス)
prefer A to B (BよりAを好む)
prefer A than B (絶対誤り、than は比較級と共起)
prefer A from B
to が唯一正解。
prefer vs like better の言い換え
"I prefer A to B."="I like A better than B." (3級でどちらも正解、ただし like better than は子供っぽい)。would rather + 動詞原形 + than + 動詞原形 = 〜より〜したい ("I'd rather walk than run.") も3級頻出パラフレーズ。preference = 個人の好み ("food preference" 食の好み)。