Just merely an observation here, not wanting to start a debate on who is best or biggest etc.
Just watched a couple youtube videos of Mike Wolf at Trainland the other day. While not the best public speaker, Mike showed a real true excitement about MTH's products (new and old) their features and the hobby. He was really living the moment so to speak. He is a train guy and also owns the company, which I'm sure has a lot to do with it. You could just sense he was enjoying every minute of it, and wasn't like a job to him. He seemed to me to be very enthusiastic about it all. Other manufacturers should take notes!
Again just my personal observation, but I hope he never retires, continues to make trains and lives for a long, long time! I think he is a great asset to the hobby all around and also in a great position to promote it, which he does very well.