I think it's impossible to make a blanket statement for or against a corner lot. It really depends on the size and layout of the lot, the traffic, and the kind of neighborhood you live in, etc.
One of the houses I grew up in was a corner lot and the yard was huge - bigger than the other homes. The same is true of the corner lots in in the neighborhood we live in now.
We luckily haven't had rude kids anyplace I've lived, so I've never seen problems with kids at bus stops. I guess the kind of people you live around really makes the difference on that issue.
Snow shoveling, again, depends on whether there are sidewalks on both sides. Some corner lots here have them, some don't.