'The Batman Superman Movie: World's Finest' got it right way back in 1997.
The animated feature was a spin-off of the widly popular Bruce Timm/Paul Dini versions of Batman and Superman series. 20+ years later, Tim Daly and Kevin Conroy are still considered the definitive voices of Superman and Batman... and we have to mention Mark Hamill as The Joker as his geek cred surpasses both of them.
The movie juggles multiple heroes and villains while still pushing pushing the story along. You actually care about the characters and believe that there is some logic what motivates them.
So if you're feeling bummed after watching the recent Batman v Superman movie, then sit back and full screen this far superior version of the World's Finest.