Let's see.

1. Scott Meyers.
He has a gift at teaching. Easily simplifies and structures complex concepts into memorable bits. And he has that charisma/strategy that you could watch/read any of his presentation/tutorial without prior context and it would still be interesting and fun (and of course improves your understanding on that topic).

2. My trainer at the first company I worked at. Fantastic guy. He would never answer a question right away. He would take a minute, go on to explain an abstract concept and then sort of derive the answer to the original question. Always, towards the end, we would be beaming at each other. I, because the answer would 'click' just before his reveal and him, because of the joy that his explanation worked.
He also emphasized working with the absolute minimal examples just like Meyers.