A truly visionary planner/architect

I would say this is my all time favourite discussion of why American cities are such awful places to live, and how to fix them:

Andrés Duany lectures on suburban and urban environments

It's an hour and half long, and worth every minute. He quickly and accurately covers all the thoughts I've struggled towards having lived here (and to a lesser extent seen in .au). Then he goes on to give 20 more important points I wish I'd realised myself.