I always used to like West Brom awaydays in the past - but I have a soft spot for the Black Country. I'm talking 80s and 90s for the most part, though.
I suspect I posted this 5/6 years ago:
Arsenal for obvious reasons
Liverpool for "gloryhunting cunts when I was a kid" reasons (and the self-righteousness)
West Ham (local rivals, owned and run by cunts, everything about the Olympic Stadium but especially the fact that it shafts Leyton Orient, my second team)
I no longer think of Man City and Chelsea as being really clubs at all - certainly not the ones I grew up with.
I generally hate whoever our rivals are at a given time. Hence Aston Villa are no longer hated (plus they're my wife's club, and I'm not allowed to talk about them in her company), Everton ebb and flow (although by Christ, their fans are whiny - 1878 and Neil not included here), Leicester are suddenly loathsome.