Labatt is a brand name, they make blue, blue light, 50, genuine lager, ice, extra dry, etc. I don't think you need to put "Labatt Blue". If you go into the beer store and say gimme some Blue, they'll know exactly what you mean.
2nd, Molson is also a brand name, if you walked into the beer store and said gimme Molson, they would ask which one. They brew Canadian, Canadian Light, Export, Dry, M and of course the now discontinued Golden.
Don't you know a quizz about beers must be "belgo-centré" ?
Augustus Busch says "I'll have a Bud Light."
Adolph Coors says, "Make mine a Coors Light."
Frederick Miller says, "Miller Light for me."
Arthur Guinness stares at the bartender and says, "I'll have a coke, please."
The other gentlemen stare at him for a moment, and Guinness says, "Look, if you all aren't going to drink beer tonight, then neither am I."