RE: QUICK QUESTION
Yep mode 2 is most popular in English speaking regions
Left Stick - Up/Down - Throttle
Left Stick - Left/Right - Rudder
Right Stick - Up/Down - Elevator
Right Stick - Left/Right - Aileron (Roll)
I like to think of the right stick as the head of the heli as it mimics the stick.
Mode 1 is the reverse.