you really think Team USA 2012 would hit high percentage 3s as they did against Nigeria if they were to play against the Dream Team considering the amount of energy they need to spend on defense. Com' on... Nigeria did not have much defense and you really think hitting 3's would win you a basketball game on regular basis, and you really think shooting 3's is a high percentage shot?
BUT... Team USA 2012 could have a chance to beat Dream Team. It's sport and anything can happen. As good as any NBA championship team in any given year, no team would ever maintain undefeated. Any teams would lose a game at certain point. Team USA 2012 is not an expansion team. They could definitely beat Dream Team.
BUT DREAM TEAM was a better team overall and would win majority of the games/or a series against TEAM USA 2012.