I think it's too early to dismiss BvS from being the top grosser this year, among 2016 releases that is (majority of TFA's take still counts as 2016). There's just so much hype for this movie and features very iconic characters, it's hard to call it this early. Despite poor reviews, OW is still tracking in the range of $140M-$160M dom, and over $300M WW. I'm waiting to see that 2nd weekend drop, there's the off-chance that the GA ends up loving this movie despite the reviews, notably in overseas territories. However if I were a betting man, I'd say CW wins out with BvS and Rogue One battling it out for 2nd place. Rogue One is not gonna do TFA numbers, as it doesn't have the halo effect of releasing after a long hiatus of SW films. Plus like TFA, most of its take will be counted in 2017, so depends how you want to track the #s.