You can't come to a solely Trainz forum (or a solely MSTS forum) looking for an impartial decision on whether you want X or Y simulator, you should've come to expect that it would've sparked a useless debate. Although I feel that you should've asked the UKTrainSim users because they're the most well-rounded community of all..(MSTS, RS, MSTS X, Trainz and BVE), I suggest you simply download the demo of Rail Simulator and the demo of Trainz 2006 and decide for yourself.
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