Hello!
I think most fliers the world over uses mod 2!
That is ailerons and elevators on the right stick and throttle and side rudder on the left stick.
The reason for this is that most people are right handed...
and as such we want to have the most important/dominant functions coupled to the right stick, and on an airplane that is ailerons and elevator!! In Sweden I have never seen or heard anyone using anything else than mode 2 in all my 27 years of modelflying.

Regards!
Jan K
Sweden