Firstly I don't think there was any point in asking this question, I mean, no one (except drunk or stupid people) is gonna say anything other than Nemesis, so I have no idea why there would be any debate in your family unless your parents are always drunk and your stupid, which I'm guessing is correct
And secondly, you missed 3 coaster off the list, 3!! not even just 1 because you forgot it, but 3!!!! I mean, theres no point in putting anything other than Nemesis on the list but you can't forget "spinball whizzer","The runaway minetrain" or "that crappy dragon one that no ones cares about except for retarded kids with really strange disorders which make them like crappy things and say things like, mommy i cacked my pants".....or at least i think thats what its called.....