Since we no longer seen to be talking about "best training aircraft" and are now talking about flying instruction in general, I will add my 05 cents worth to that conversation as a current and active flight instructor.
When I teach attitudes and movements I don't even mention the flight instruments except for the ball. When the students ask about the panel full of instruments I tell them everything they need to know about what the airplane is doing can be discerned by looking out the windshield.
I always carry a pad of post it notes and will cover up any instruments the student is misusing.
My last PPL was done on a privately owned airplane. It had a fancy EFIS system which was great, because it had its own power switch. I only turned it on when we got to the navigation and instrument portion of the PPL, near the end of the course.
Last edited by Big Pistons Forever; 24th May 2015 at 23:43.