My Team: Midnighter (leader), Longshot, Mirror Master, Nightcrawler, Sylar
The Avengers: Captain America (leader), Hawkeye, Hulk, Iron Man (Extremis), Thor, Vision
Location: Middle of a deserted city
Any DC characters are pre-52, any Marvel ones are standard/classic versions. Standard equipment for all.
Random encounter, everyone in character. Battle out in the open, starting 20m apart. Win by KO or death.
Does my team prevail?