Batman and Prometheus vs Deathstroke and Captain America
Two, enhanced, near-meta humans against two highly trained humans.
Morals on, standard gear, standard suits, no vehicles. Battle takes place in The bronx, NYC. A few Bystanders but not a lot of them. No external sources, no aid from others in battle. This battle is assuming that they will both work together.
2 rounds, Round 1: Random Encounter
Round 2: 1 hour of prep