YOU SAID:
My dog is the best one.
INTO JAPANESE
うちの犬が一番いいよ。
BACK INTO ENGLISH
My dog is the best.
INTO JAPANESE
私の犬は最高です。
BACK INTO ENGLISH
my dog is the best
INTO JAPANESE
私の犬は最高です
BACK INTO ENGLISH
my dog is the best
That didn't even make that much sense in English.