It used too be the Mags but the Saudi money has changed that, you couldn't tell a mag that they probably say " Boro fan desperately trying to make themselves relevant", which adds to my growing contempt for them so I would say WBA can't get worked up to even remotely dislike or like them.
Probably about ten I'm not a fan of but I don't really hate any until specific moments:
Sunderland
Newcastle
Leeds
Derby (more temporary)
Lazio
Chelsea
Man City
MK Dons (ergh)
Reading (really?)
West Ham
Rangers
Hamburg
Few I have soft spots for:
Fiorentina
Darlo
Boca
St Pauli
Hanoi FC
To be indifferent I guess I have to not know anybody who supports them and have no memories of playing them and find the place bland.
Not many of them.
Lincoln City, Cheltenham Town, Rochdale, Gillingham, Crawley Town, Stevenage, Sutton United.