Hate is reserved for
Chester and Shrewsbury.
There any many teams I dislike and enjoy to see struggle: Newport, Cardiff, Swansea, Tranmere, Walsall, Crawley, FGR, Chesterfield, Fleetwood, MK dons, Mansfield, Salford plus many more.
Mostly teams I feel have wronged us at some point, any team can be added to the list if a player or manager I particularly dislike ends up there.
A rival can turn out to be anyone, e.g, Orient this season where a rival i hoped would loose every week but doubt I will think twice about them next season.