In case you were wondering I think this works best for 300 points. It did well for me:

Superman 216
Bruce Wayne 48 /w Bats
Diana Prince 32 /w WW

Supes carries Diana and puts her somewhere safe to fly back to after his alpha strike. Bruce catches up to follow up with outwit and maybe act as a tie up. Both support Supes, pushing them until they hit thier AE clicks.

When the dice roll right I wiped a whole team and didnt even have time to change Bruce and Diana. Let me know if you guys got the same thing? Or something better/

I tried the following,
X2 Bruce Waynes/w Batman 96pts.
X2 Clark Kents/w Superman 96pts.
x1 Wonder Woman 108pts.
total = 300pts.
,and was beaten because of a lack of range,and Wonder Womans funky dail."Charge then Furry", not the other way around. Ithink your army might be best to use,hypersonic,and superman ally,support,and outwit always a good combo.