I've always been a fan of Denny's. I grew up at the time when Denny's was only in the US and we would visit them during our hockey road trips. Of course now Denny's are everywhere. I haven't been to Denny's for a while and decided to go the other day. There's something about the Denny's atmosphere that's very comfortable. For me, as soon as I walk in it's like I just stepped into the US. Somehow they manage to retain the American feel, right down to the friendly managers and servers. I always get the Lumberjack Slam and all the coffee I can handle!
I will say that other local breakfast places offer more food for the money compared to Denny's these days, but none have that great atmosphere that only Denny's can provide.