As someone not particularly invested in any of these characters outside of cartoons and reading some of the most popular compilations:
Batman v Superman: I honestly think this could be good. The hardest part of the Superman movie for me to suspend disbelief for was not the flying dudes with laser vision, it was the triumphant moment of "we won" while standing the in the rubble of an entire city. If this actually deals with that fallout, it could be worth watching. Also, re Clark's parents: I know someone said it of the first one, but the so-called cynicism feels like actual things parents would say. I imagine it's not unlike your kid joining the army or the police force - you would want to be proud and encourage them, while part of you just doesn't want to expose them to risk.
Suicide Squad - You all nailed it. This was their chance to make something fun that didn't take itself so damned seriously, and based on the marketing, they dun fucked it up. Again. It should have been a silly movie with serious moments, not the other way around.