YOU SAID:

My cat will always be prettier than any other

INTO JAPANESE

私の猫はいつも他のどの猫よりもかわいい

BACK INTO ENGLISH

My cat is always bigger than any other cat.

INTO JAPANESE

私の猫はいつも他のどの猫よりも大きい。

BACK INTO ENGLISH

My cat is always bigger than any other cat.