I would just like to say, new coach, new season, this is our year! (Wolfpack fan here)
I agree though. I am a Wolfpack fan and really don't consider them to have a main rival. Sure, it's nice to beat Carolina or Duke (or even stay close in a game), but it's been so long since being competitive that they aren't rivals. I would love for it to happen again, but it's going to take time.
That being said, the Bills are the same. Without being competitive they have no real rival. The Dolphins haven't been good either, so that has gone by the wayside. I would say I get the most pleasure from a possible Pats beat down. That's not because they are our rival, but because we haven't done it in sooooo long.