Your best work is your expression of yourself. Now, you may not be the greatest at it, but when you do it, you're the only expert.
Everything - design and technology and materials - has changed since the World Trade Center was built. A lot of it has to do with computers, which allow us to be far more efficient as well as structurally sound.
One of my unsung heroes is Erich Mendelsohn. I met him when I was a student and he was a cranky old man and very unpleasant. But if you go to his Einstein Tower in Potsdam, Germany you see an enormous intellect at work with a language that was personal and new. It has a sense of urban design and of theater and procession I hadn't seen before.
Generally people are more impressed with the services and the comfort issues than the design.
I'm going to design the container and interior spaces. You bring your own stuff to it and make it your own.