Straight answer is that I would choose 2, as I think a vast majority of my generation would. That doesn't make it an automatic decision now or if it would work. I think clear lines of respected authority are best for leadership, but the world is really different now.
Izzo seems to have heated chats on his sideline frequently, but has no reputation of being an abuser or a tyrant, and to my knowledge has never booted a player off the team for insubordination. If Howard has control of his team in the context of a player barking at him in a tight game on the sideline, more power to him. I suspect the key to mantaining order is everyone being treated the same. If barking gets one seated, it should get all seated. If barking is allowed for one, it should be allowed for all.