As a one-off comparison that does make good sense, since they're very close box office wise.
But I don't know why more people don't compare it to MAN OF STEEL. That's the actual bellwether.
It's gonna make more than MOS, be quite profitable, and most importantly position the future DC films for success. Everyone's happy, except for maybe diehard DC fans who get caught up in the whole "it's a contest with Marvel!" B.S. That's all in the minds of fans. Neither WB or Marvel/Disney could really give a toss about that. In fact, if anything, they'll pull for each other to do well since maintaining financial success in the genre is good for all.