I like all my family but I like my father ("most - the most ) of them

i think the right choice is " most "

most مع أفعال الأحساس تحذف the

both are correct

according to many references
both are correct

Most :لانه لاتوجد صفه للمقارنه

most عشان مستر احمد كمال قال كده عشان مفيش صفه مقارنه

most بس عشان هنا مش محتاجه أداه معرفه

In my modest point of view , I think it is Most

MOST is the right answer.

الافعال الآتي ذكرهها وغيرها تأخذ مفعول به ثم صفة تفضيل بدون the
like - admire
I like my English teacher best
I admire my grandfather most