I can guarantee you that few American cities consider "skinny Victorian houses" as typical suburban architecture. Victorians are generally found closer to the centres of cities, and as a result many of them suffered when downtowns depopulated. Many of these cities now have a gentrified area where some of these houses have been restored, but many have lost a significant portion of them altogether. Toronto, on the other hand, did not hollow out at the centre as so many of these cities did, so we have a much wider collection of Victorians, from the smaller cottages in Cabbagetown and elsewhere to huge Romanesque houses in the Annex. For sheer number of Victorians in livable, functional shape you'd be hard-pressed to beat Toronto. Ours aren't as colourful as some of those in San Francisco, for instance, but they sure cover a large and substantial part of the city. And car4041 is correct - the brick bay and gable is a very distinctive Toronto style. You'll see a few of them elsewhere, but they're just everywhere here.
Older generic North American suburbs tend to look more like the wartime/postwar areas of East York and Scarborough, with their small gabled bungalows. The more affluent ones are full of Tudor and Georgian revivals and lots of midcentury modern ranch style or split level houses.