My 2d worth.
Leading with rudder? Maybe in a Nimbus 3 glider with a 25M wingspan but in a light single? - No! Use enough rudder during entry, maintenance and exiting the turn to keep the aircraft in balance. Use feel/slip ball for this.
Demo adverse yaw in EofC2. Tell the stude he will need to counter this when learning med turns later in the course.
Levelling the wings with rudder on finals? No! Use the ailerons - that's what they're for.
Picking up the wing with rudder in the stall? NO! If the wing drops, you should recover from the stall and level the wings with the ailerons once the wing is flying properly again. What you should teach is to prevent yaw with rudder at the stall. As all instuctors should know, buffet with undemanded roll = incipient spin. You can't use the ailerons at the stall as the downgoing aileron will stall the wing further. So reduce your chances of entering a spin from the stall by preventing yaw.
It is quite easy to turn the aircraft on the rudder. Try it one day. In the very early days of CFS in WW1, the standard way of teaching turns was to use full rudder and keep your wings level with ailerons. Banked turns were considered 'stunting'.
The meaning of life is 42.
I hope BEagle agrees with all of the above. He's my CFI!