I'm going to hate this Lex so much. The fact that he is already outwardly crazy bothers me. There is nothing commanding about him. The way he walks into the shot during the shade-fest between Wayne and Clark, you would think it was a random under five given an annoying line to say.
Doomsday looks good to me. He is not a pretty character and I guess this is the closest they go without being outlandish.
The three of them together looks good. I like superman's and Wonder Woman's costume the most. Bat's costume looks heavy and seems like it doesn't leave much room for movement.
I feel like this trailer gave us too much, and that is never a good sign for me. We basically got the meeting, the dream, the actual fight, and how the trinity comes together.