I am confused as all hell here. Are you saying Atrocitus is similar to Catwoman?
He uses his nails as basic attack cause he can't make constructs, so he would be a male version Catwoman with plasma spitting as gimmick.
You could gave him wolverine blades/spikes but Doomsday takes that in now to be different from Bane and Grundy.....
Sinestro and Hal are like Sektor and Cyrax and yes Compros they'll both be long ranged fighters but at least with different weapons!
Hal would use minigun, hammer, green fist and a jet as finisher and Sinestro would use buzzsaw blades like cyrax, chainsaw, snake bites
like in mugen wich would be cool and for all i care they let him make a yellow t-rex who eats you and shits you back out!
Cyrax and Sektor are both long ranged fighters but different weapons and both fun to play as and having fun is all what matters to me.
Besides it's already Sinestro read the magazine and see yourself Neatherrealm agrees with me.