Tu, I recommend you also consult with doctors specializing in GK and CK (GammaKnife and CyberKnife). Until you explore all your options, you will see only part of the picture and risk overlooking what may (or may not) be your best choice of treatment. This assumes that you are, mincing no words, comfortable with having a dead tumor in your head for the rest of your life. Some people just want the damn thing taken out. For them, surgery is the only option they are comfortable with.
Ask all of the doctors you've consulted with what are the chances (in percentage terms) of losing your hearing and facial-nerve function and suffering chronic headaches. You will probably hear that surgical resection presents, by far, the greatest risks in those respects, but maybe not. Keep in mind that the chance of recurrence is about the same (2%) for surgery, GK and CK, when performed by the best doctors and facilities, so that should not be a deciding factor.
Once you know, for example, which type of treatment presents the greatest chance of facial paralysis and/or deafness in the ear on the AN side, ask yourself whether that increased risk -- especially when you are so young and have a lifetime of potential disability ahead of you -- is worth taking or whether you should consider one of the other forms of treatment.
By evaluating the level of risk prognosticated by each doctor for your specific case, you'll make a decision on your treatment with your eyes wide open and more prepared to accept the consequences should those complications arise. Unless and until you make this type of informed decision, you will continue to be buffeted by the biases of each doctor you consult with (and every doctor, no matter which type of treatment they specialize in, has a bias). Some doctors will recommend one type of treatment even though it presents higher risk -- or even absolutely certain bad outcomes, such as single-sided deafness -- because they still believe it is the best treatment and the benefits outweigh the drawbacks. But it is far too easy for someone who doesn't have to live with those consequences to recommend that path for someone who does.
My point is that you probably don't want to make your doctors' preferences be your primary guideline for choosing your treatment. You want to instead evaluate what the likely outcome of each treatment means to you, to your quality of life going forward. You are the boss. You have to live with the consequences of your decision. No form of treatment is risk-free. Ask your doctors the difficult questions. Get hard numbers on the associated risks. Then ask yourself what risks you are most comfortable with assuming. The answer will then become clear to you. You will know which treatment is right for you. It will still be scary, but at least you will know in your heart that you have reduced as much as possible the risks you fear the most.
Be smart. Make an informed decision. Take control.
Best wishes,
TW