Rounding out the top five in mentions were Bethesda (10.8 percent), which offered up new games in its popular Fallout and Elder Scrolls franchises, and Microsoft (8 percent), which despite breaking a Twitch record for concurrent streams with its pre-E3 presser, wasn't a major topic of discussion on the show floor.

However, Synthesio also released what it calls a "social reputation score," which takes into account not only number of mentions, but also whether the sentiment expressed was positive or negative, and assigns a number between 0 and 100. Also, the mentions are weighted by influence, so those with more impressions and interactions have a greater effect on the score. According to this metric, Capcom was the winner with a score of 78.89, followed by Ubisoft (74.24), Microsoft (73.73), EA (72.99) and CD Projekt (69.99). Indeed, Capcom brought news, trailer reveals and demos from many of its beloved franchise — including Mega Man, Resident Evil, Monster Hunter World and Devil May Cry — to the con, so its strong showing on social media isn't a surprise. And Ubisoft's two major titles — The Division 2 and Assassin's Creed Odyssey — both generated tons of buzz. Nintendo ranked sixth with a score of 66.99, due to 33 percent of all mentions being negative in sentiment. Perhaps leaving Waluigi out of Smash Bros. Ultimate was just too much for some fans?

Synthesio pulls data from a number of platforms to compile its rankings, including Twitter, YouTube and online forums.