I think both trailers looked pretty good. The Wonder Woman was much better than I expected given I didn't really like the actress pick originally. she looks to have found a good balance of seeming slightly 'off', like I guess an ancient god would, but also somewhat relatable
the Justice League trailer is not really a real trailer, just clips, as they haven't finished the film yet. But it looks far more promising than BvS. Not shocking considering from what I understand Snyder is being pushed away and Affleck given more control