There used to be St. Huberts in the GTA. I remember one on Queensway and Eastmall. The building is still there and looks just like St Hubert, only now it's called "The Grill" or something like that. No longer St Hubert.
They tried to crack into the Toronto market, but I guess it didn't pan out for them.
I find their chicken and Swiss Chalet chicken to be pretty much the same. When SC is done well, it's done well. The only problem I've encountered with SC is that it varies A LOT. It varies by the time of day, and it varies by location. Wrong time of day, (off hours) and your chicken will be dried out, burnt, and cold (there's combination).
St Hubert's menu offers up a lot of superior choices compared to Swiss Chalet (like various types of grilled chicken) and there, St. Hubert wins hands down.
So yes, I would agree that St Hubert is the superior restaurant.
But if all you want is a quarter white, then they are the same (but Swiss Chalet can vary to your detriment.)