I've harbored a hatred of the Jays since Doug Alt homered in their first ever game back in 1977. I hated the Toronto Toros of the WHA, especially when they lured Frank Mahovlich away from the Habs. I never watch basketball and Montreal doesn't even have an NBA team and I hate the Raptors since the day the franchise was awarded. If the Toronto Rock are still a thing I hate them too, despite never having watched a lacrosse game.
When the Expos died I lost one favorite team and gained a couple dozen more. Whatever team plays the Jays is now my favorite team.