While Captain America: Civil War crushed Batman Vs. Superman in terms of overall trailer viewings in its first 24 hours, the recent Dawn of Justice trailer took home the title for most talk on Twitter.
While the Captain America: Civil War trailer shattered the world record with 61 million views in its first 24 hours to Batman Vs. Superman's 23 million (accounting for YouTube, Facebook, Twitter viewings, etc.), Batman Vs. Superman quite possibly may have surpassed Civil War in total as a quick look at various accounts on YouTube and Facebook seems to suggest BVS is now in the lead.
Numbers to date for both trailer viewings have yet to be released, but on WB's YouTube channel, Batman Vs. Superman netted around 16.5 million views to Civil War's 8 million on Marvel's YouTube. Likewise, on Facebook, Batman Vs. Superman is at 15 million views to Civil War's 5.3 million.