Perhaps you might like to ask how well the simulator training prepared the crew of the Sioux City DC-10 for their "real world" excursion Mr Knight? A failure not even contemplated by the designers or airworthiness authorities. Human resourcefulness, and plain experience can sometimes not be measured by a machine. Each side of the argument has validity. Can you land a 747 or 777? Maybe. But to simply assume you can replace someone experienced when the machine and conditions are at their worst? I think not. Especially when it is your own life in question.