Sforno on Genesis 25:28/ספורנו על בראשית כ״ה:כ״ח

1ויאהב יצחק את עשו, also Esau, not only Yaakov, even though he must have been aware that Esau was far less perfect than Yaakov.

2ורבקה אוהבת את יעקב, she only loved Yaakov, recognising the wickedness of Esau.