Star Wars fans have been hungry for a real genuine Star Wars experience in the theater ever since 1986. That's the year the next film, episode 1 was supposed to come out. It was supposed to be 4,5,6, then 1,2,3 and finally , 7,8,9. And while 1,2,3 did technically get made and had their moments, they were a far cry from the real tone and feel of of Star Wars. Because of this waiting by generations of fans from young to old, they will flock to the cinema in droves. Avengers has, I believe, a fan base that is relatively new, as the MCU fandom is still pretty young by comparison to the Star Wars one. I think the numbers will be close. But in the end I believe episode VII will be the Victor.