Hi and welcome,,
Jan is right that no one can tell you what to do,, it is a very difficult decision which we all had to make.
I am sure once you have done enough researching you will become comfortable with your choice.
It is not a surprise that the surgeons all recommended surgery,,,that's what they do for a living ...unless they gave you specific reasons for that choice..I.e. Location of tumor, to close to brainstem for swelling associated with radiation,,??
You owe it to yourself to contact a Dr who specializes in radiation of these rumors and get his opinion.
Search for Dr Chang at Stanford I believe.
Just my opinion,, I would lean towards radiation I believe as the surgery can be a difficult recovery. I had surgery in 2011 as I was not a candidate for radiation after I watched and waited for 3 yrs it grew too large..SSD , single side deaf,, is not that difficult to deal with as you say. I was that way until I decided to get a BAHA device last Dec. I am not that satisfied with it and almost prefer SSD to dealing with it.
Good luck to you in your decision making process,, you will eventually get comfortable with a treatment I'm sure...
Jane