Let's start off with what DC brought to the table. On the TV front, They talked some about Legend's of Tomorrow, which takes characters from both Arrow and The Flash and as the writers at the panel put it, "All the ideas we decided were too crazy for ‘Flash’ or ‘Arrow,’ we put in this". Not a lot really stuck out about their television properties though, other than this...
Batman v Superman: Dawn of Justice. Yep. That trailer was incredible. Probably the best trailer to come out of the convention. Some question DC's darker tone. Some feel it's trying too hard to contrast what Marvel is doing and that some of their characters don't deserve the dark treatment. Heck, I even agree with that. This movie though, has a reason for it and I think we're all going to be in for a surprise. I've always trusted Zack Snyder's vision as a filmmaker. Spanning all the way back to 2004's remake of Dawn of the Dead, that him and James Gunn (Guardians of the Galaxy) made. His other comic adaptations, 300 and Watchmen are both widely regarded for their faithfulness to the source material. I am not a fan of Superman and have never really liked any movie pertaining to the character other than Steel (yes, that one), until his Man of Steel was released. Jeff even seems excited for it and he's the one that's difficult to impress. Speaking of a surprise. This picture went by quickly in the trailer. Shows that Batman has maybe been retired for awhile and that The Joker is a known, previous villain of his.
Also, they really brought it in their film used costumes department. Having outfits from their upcoming movies, TV shows and past films (Watchmen) on display.
Taking Marvel/Disney's place this year and in a big way, baby... Was the Marvel/Fox connection. They talked the new Fantastic Four and how they're not going to do a post-convert to 3D. Thanks for that! Shoot it in 3D or don't use the medium. They showed some new footage which seemed to make people feel a little more hopeful. The producers really seem to be pushing the modern family element and how important it is.