I had MS Flight Sim some years ago which I used to play with. I also had an ATC simulator programme - think it was called Tracon, or something similar, which (supposedly) simulated the London TMA where I worked. I could land the 747 in FlightSim 9 times out of 10 but a friend of mine who used to fly them had great difficulty. Equally, when I played at ATC I kept having airmisses yet my buddy could do it with no trouble!!
Great fun, but definitely not to be taken seriously.