Pair who ever u want here's me.
Symbiote Spider-man vs Nightwing
Deadpool vs Red Hood
Hulk vs Bane
Red Hulk vs Solomon Grundy
The Lizard vs Killer Croc
Human torch vs the flash
Silver surfer vs green lantern
WW Hulk vs Superman
Black Widow vs wonderwoman
Captain America vs power girl
Dr doom vs supergirl
SSM wins, just because Nightwing was with Batman doessn't give him the w.
Deadpool wins, pretty much the same thing as #1 only Deadpool can't die like SSM could.
Hulk destroys Bane, come on even Batman can beat Bane.
Grundy wins, he's undead plus Ross is a chump, nothing like the real Hulk.
Killer Croc wins, just my opinion
Flash wins, do I really need to say why he's the flash torch couldn't hold a candle to him(dun dun tiss)
Surfer v Lantern could really go either way and it depends on the lantern. The Lantern ring is one of the most powerful weapons in comics(Marvel or DC) but the users aren't the same, I'd say Hal Jordan GL wins John Stewart GL probably loses.
Superman wins, I like the Hulk and I know WW Hulk is even stronger but still, Superman only loses to magic, kryptonite and no sun/red sun.
WonderWoman wins, Natalia could put up a resistance but only a few hits from WW would end the fight.
Power Girl wins, she's supermans alternate reality cousin that's like asking if Cap could beat Superman.
Doom wins for one reason, if this is a mutual world then all things from them both exist meaning kryptonite exists, there's no way Doom wouldn't own some kryptonite if it existed in his world so Doom via the kryptonite.