There’s not much time left before the latest DC Comics movie makes the old geek argument of “who would win in a fight, Batman or Superman” into the plot of a two-hour film. DC Universe Online isn’t about to answer that question before the film releases, but it is asking players to choose their allegiances in a new Batman vs. Superman-themed arena tournament. There’s also a whole video just below to show off some of the prizes available to players who take a side.
Also note that you are disqualified if you mention you’re on “Team Stark.” Different movie with superheroes fighting each other.
If you’re looking to hone your skills before you go fighting on the behalf of DC’s two headliner heroes, the servers are currently down for maintenance to apply update 58 to the live servers. That includes all of the BvS stuff along with the St. Patrick’s Day event along with mechanical updates. Downtime started at 9:00 a.m. EDT and may last for up to 8 hours, so you’ll probably need to get your practice in this evening.