The "rivalry" is weird, in fact it was something that I think was actually dying out until recently.
I remember the season they went down and we'd beaten them at the SOL, after the match I was walking through the Sheepfolds to come back into the town and I got chatting to a couple of Coventry fans, a lad about my age and his girlfriend and they were actually canny. This lad said that not everyone in Coventry loved Jimmy Hill, that his dad always said Hill did a lot of things for his own ego and Coventry suffered from it, including that Bristol match. They admitted that they were lucky not to be relegated over it from a points deduction and probably only got away with it because of his connections in the FA. They also said SAFC and Bob Murray were giving them help and advice to build their new stadium because of the cost over runs on the original plans and that Reid and Strachan were pretty friendly. Over all there wasn't that much "rivalry", especially as they were struggling and we seemed on the way up. If anything it seemed more dislike from us because of Jimmy Hill and David Speedie but otherwise they were a club we largely forgot about most of the time. We'd laugh if they got beat but otherwise paid no attention to.
I really think that changed because of that 5-4 match in league one and the way their fans behaved. I think that re stirred up old hatreds from us that had largely been ignored. It also seems that for nearly a decade we've lived in their heads rent free. They seem fixated on us, just like Portsmouth did in league one. It's weird because there doesn't seem any reason other than Jimmy Hill's cheating almost 50 years ago and them defending him about it and we'd barely played each other in years as they slipped down the league until we had problems and dropped into league one. But because of their attitude we want to see them fail even when we're in different leagues.