Well, if we consider the powers and abilities of each team. Young Justice has Aqualad who can control water, which could be a huge advantage in certain environments. However, the Titans have Raven with her dark magic. In a straight - up fight, Raven could potentially take out multiple opponents at once. But Young Justice has speedsters like Impulse. He could disrupt the Titans' attacks and strategies. So, it really depends on how the battle is set up, the location, and the initial conditions of the fight.
It's really hard to say. The Young Justice has some really powerful members like Superboy and Miss Martian. But the Titans also have strong characters like Starfire and Cyborg. It could depend on the situation. If it was a battle in an open field, the Titans' more experienced members might have an edge. But if it was a stealth mission - type battle, Young Justice's skills could give them the victory.