How do YOU handle the sticks?

Thumbs, and Forefingers - most definately. I find it gives more feeling to what you are doing, you can pull much nicer, smoother maneouveres when you can 'tickle' the sticks. That applies to both hellis and aeros - indoors, and out..!
When you get your setup, just sit in front of the telly one evening, and get the feel for what is going on while you are holding the Tx - then choose whatever feels most comfortable.
Hope this helps
Happy flying.