Yeah KGBeast isn't much but still guy deserved a little bit more. 

Too me Black Spider was one of the most interesting because of his vigilante side and being one of the more badass ones present. I actually even felt some sympathy for King Shark and Killer Frost which is surprising. 

Hopefully Throne of Atlantis is good, I want the Justice League to be more... mature in their characterizations than in War but so far it looks good. I haven't read the comic for it but I heard Firestorm, Zatanna, Green Arrow, and the like appeared in it so it's a shame they probably won't show up in the film. I do like how Aquaman is getting a proper origin story. So I'm optimistic. 

Batman was a side character in this one which is good really.