You'll be hardpressed to find one. Mostly because Marvel is on their A-game when it comes to releasing clips and promo-material to the public. The BvS trailers and clips are just bad, with a few exceptions; the scene with Bats at the signal and Supes floating in the air was badass, this teaser. Apparently, having an opinion that isn't "OMG THIS IS SO AMAZING IT'S BATMAN VS SUPERMAN WHAT MORE DO YOU WANT?" immediatly qualifies as "shitting on the movie" and being a Marvel-fanboy. Having a negative opinion about a clip is okay, it really is. It doesn't invalidate your opinion nor your ability to enjoy the clip.
Also, it's perfectly fine to develop an opinion on a movie based on the promo-material released by the studio, because that's what the material is for. Pixels' promo material was shit, and the movie was shit. Most of us figured that out, based on the promo-material, because that's what it's for. Now, I'm not saying a movie is shit, because it's promo-material is shit, but that stuff exists to let us glimpse into the movie a little bit before digesting the full thing, form an opinion on whether or not it's something you'd be interested to see.
You want to make this a Marvel vs DC discussion, fine, but bring the material yourself. Show us a bad trailer or clip for a Marvel-movie, and the overwhelmingly positive response to it on GAF.
Exactly. Example: Ant-Man Trailer 1's thread.