I consider defenders that score as a bonus of their skills, becos their job is to defend most of the time. Mainly it is the attackers' job to score and by right he should score, not the defenders who do that. However it will be good if we have a defender who has aerial ability.
1st of all Cannavaro, a defender of height 1.75m who can jump amazingly high considered for a short defender and head balls in. He likes to score and track back when it becomes a goal kick. Despite these facts, I don't think he's really that good in terms of aerial ability juz becos he can score. I would prefer him to defend well.
2nd of the lot, I know I would be laughed at, but I wish Tudor will be back with us. His aerial ability is good and he can defend well. Never mind about his injury, he is actually a bonus to the team. Not only can he defend well, he can also score with his head in ugrent circumstances. He also knows how to volley. This is a plus point about him, even though I still prefer him to play in Juventus as a defender.