B747-8 intercontinental and A380?

Both planes will offer good economics over specific routes mostly transpacific and transatlantic service. The 747-8 will be successful mostly because of it's commonality with other 747s and the 787. The A380 will enter service and be seen more and more over the next few years on the world's airways but I do not think it will be produced in large enough numbers to break even let alone make a profit. The public has many different wide bodied airlines at their service and although there will be a lot of publicity when the service begins, people will not be lining up to travel on so large a plane just for the thrill of it. On the contrary the traveling public has had plenty of experience with large planes and will shy away from one so large as the A380. They're saying "do you want to spend eight hours flying with seven or eight hundred people?"