I would need to know more but it sounds like you would have a strong EB1A extraordinary ability green card application so I would just go this route. And the NIW route is very slow and the law oftentimes misapplied by USCIS so it's not necessarily an easier standard to meet.
I don't want to take issue with your attorney's assessment because she knows your background better but oftentimes people underestimate their EB1A qualifications and go down the wrong path.