Deathstroke is 100% better than Catwoman and Batman and I'll stand by that for all time. Deathstroke is character with 4 or 5 losing matchups, none of which are 3-7 by the way. His losing matchups are only 4-6
Batman and Catwoman both have 8+ losing matchups, not only that but they both have multiple matchups they lose 3-7
Even if you assumed Deathstroke had more losing matchups, there is no debate that his matchup spread is much better than them both, with that being said Bane is more questionable. I have Batman and Catwoman both in top 15 most likley, the main reason they are not above Bane is because they don't have as many winning matchups. Also there are other characters in the top 15 like Lobo and Doomsday that could also have better matchup spreads than Batman and Catwoman