I'm mildly torn about placing bus stops before placing your lines. Although, I think I'm leaning towards being happy about it.
It's been convenient to just click once when creating stops on your line. But, I'm thinking that we'll end up putting more thought and care into where the stops actually go. That, and if I need to edit the line and I happened to remove a stop, I don't have to hunt for the exact spot where it was previously.