I suspect this has been asked several times but I am about to start training for the London Marathon having done a few half marathons now. I am going to follow a beginners schedule being my first time and have two schedules printed out (one from RW and the other from the Virgin Marathon official magazine). The problem is they differ so much. One recommends training three times a week (with long runs on the weekend), the other six times a week.
Is there a tried and tested schedule that people would recommend?