On a completely unrelated note, the first thing that came to mind when I heard Lebron James was signing with Miami was "Dammit, the Heat are going to be assholes in NBA Jam."
Yeah, they are a perfect videogame team. But with NBA Jam you can only play as two guys at once so you won't be able to play as all three of them. So in theory any team with two stars should be able to compete with them.
It actually would be fun to play videogames based on the major sports with the best "videogame teams" where it's all about who is awesome on paper. In the old NBA Jam teams like Utah and Houston were awesome because they were Stockon-Malone and Hakeem-Drexler. Who cares who's on the bench? When you're only using those two guys you've got a perfect videogame team.
The Heat, Lakers, Spurs, Celtics, Magic, Rockets and Mavericks all have perfect NBA Jam teams because you can exclusively use name players.