For instance, assuming a sketch that could run on either an ESP or Arduino without using any special features...
1. Would that sketch run faster and better on the ESP or the Arduino?
2. Which would provide more usable memory between say a 4Mb ESP-12D and a Nano?
3. Could an ESPs wifi and wifi interupts be disabled completely to give total unhindered program control of interupts?
4. Are there any other important factors which favour one over the other?