Ill go fist
1. 3 Fights
2. Supes wins one fight,Bats wins another,and the third one is a tie.
That sounds pretty fair, the alternative I see is perhaps
one fight that is mostly a tie for collateral reasons ( e.g. Batman/Superman is winning and then either a villain shows up, or a disaster happens, that perhaps leads to a team-up. )
I kind of see it like this, probably 3 confrontations
1. direct physical confrontation = despite his toys Batman is defeated
by Superman's overwhelming might
2. mental/strategic confrontation = Batman creates a situation in which
Superman has to yield (basically he outthinks him).
3. Initial hostility/tensions then a grudging team up, "maybe the enemy of my enemy is my friend" scenario ending with some respect and a handshake.
I hope Snyder and co are listening to the fans, and have a well-thought out, balanced story that we can feel satisfied with. Fingers and toes crossed.