Batman v Superman: Dawn of Justice (2016)

This was the trailer every comic book movie fan has waited for – the trailer in which Batman finally met Superman. And it delivered on many levels. Besides showing that Henry Cavill was born to be the Man of Steel, it also showed that Ben Affleck makes for the perfect Batman (in this new continuity, of course).

It had subtle hints (such as the Robin costume), it had awesome action, it had the first time when Wonder Woman came on the big screens (in a modern superhero flick), it had everything needed for a trailer to be called the best!

Zack Snyder directs so it was obvious.