Who do you think Tywin Lannister would prefer to have as a son?

I think neither of them. He had s***ed all over Tyrion and made his whole life a living hell. And as far as TV series's continuity shows, he is very disapproving of homossexuality too, considering it to be a mental illness. I don't believe he would have accepted Loras, much less if he was his son. We all know how cold Tywin is toward his favorite children Jaime and Cersei after all...

@dragonborn_ct: I know he'd rather have neither. But if he had to choose.

Tyrell. Normal height. Capable Combatant. Good Looking. So he would atleast have a proper successor if Jamie should be killed in battle.

Loras. Tywin can scare him straight.

Loras. By far.

Loras.