LOL this is truly a spite fight. Destroyer vs Superman was already made about a week ago and in there, it was very clear that there was nothing Supes could do to it cept use T-Vo to find the soul animating it. Mangog also would rip Supes a new one if Supes tried to only use his powers to fight and not with intelligence. BFR on Mangog would be very dangerous and risky cause Thor tried it once and he got zapped for his troubles. 1,0000 out of 10 for team.
any of these guys would destroy superman. solo, i say against mangog i give supes 1/10. against the dread one he gets 0/10.
together there is no way for him to triumph, he most likely bfr's himself to call for backup. if he stays and fight, he is liable to get torn in half like two rabies infected pittbulls fighting over a squirrel.