Eug - re: Yonge and Eglinton. No that intersection can't really be called suburban anymore, but the area just north of Eglinton is a very sharp contrast from just south of there. The lifestyle and aspirations also seem suburban there. Far more than anywhere else in the Old City of Toronto.
For instance, David Dunkelman writes (yes, he's a realtor, but his guide to Toronto's neighborhoods is excellent):
"Lytton Park is one of Toronto's most exclusive neighbourhoods. It is home to doctors, lawyers, stockbrokers and corporate executives who value Lytton Park's quiet charm, and its convenient access to transportation corridors leading in and out of the city.
Lytton Park's other assets include beautiful homes on large lots, outstanding recreational facilities, and a close proximity to excellent public and private schools."
Sounds more like Chevy Chase than Georgetown, more Wilmette than Gold Coast, more Scarsdale than Upper East Side, more Chestnut Hill than Society Hill. I anywhere can be described as a suburb in the (old) city it's (greater) Lawrence Park.
http://www.torontoneighbourhoodguide.com/regions/toronto_north/50_overview.html
And the Toronto Life real estate guide says (quite accurately IMO):
"It's the perfect neighbourhood for people (increasingly young families, according to the latest census) who like the quietude and big-lawned openness of suburban life, with all the amenities and excitement of the big city within a five-minute drive."
http://www.torontolife.com/guide/real-estate/central/lawrence-park-south/
And certainly if I weren't from Toronto and I saw these pics I'd definitely think it looks like a suburban area:
http://www.torontoneighbourhoodguide.com/regions/toronto_north/50_homes.html
http://www.torontoneighbourhoodguide.com/regions/toronto_north/09_homes.html
Bloor West Village and the Beaches are a bit trickier. The Beaches almost seems to be like a quirky (and upscale) town than anything else. Bloor West Village seems to very streetcar suburb-ish, while the East Danforth seems to be a transition zone (kind of like dare I say, Archie Bunker's neighborhood in Queens).