None of them. One of the best things about Rider is that it changes with the times, and keeps trying out different kinds of plots to wrap around a format that hasn't actually changed very much over the years. The ideas that didn't work the first time around probably wouldn't work better upon a revisit just because you updated the effects.
Ita, since some of them you can't go backwards and remake them properly. You can only learn from them and figure out what does or doesn't work for the next series.