As with anything like this, the more information you give the better tailored to you the advice will be.
Questions that came to mind:
What will you be flying? What is the weight, power, wing loading.
What is your heli experience? Hover? forward, nose in, nose left and right. Electric powered small. Glow powered large? Some inverted? Years of flying? new, intermediate, expert?

Most important though is where do you want to go. Back yard defy gravity or TOC Champion?
If you ever want to get good, you need to not pickup bad habits that will hold you back.
So learn the right way, 4 channel full house (alieron, rudder, elevator and throttle).

Do you own your sim? What have you been flying on the sim?