I don't think volume comparisons are often much good - I drank more than some, and not as much as others.
I know guys who drank less than me who are now dead from their drinking, and guys who still drink more than I did but will never identify as alcoholic.
Behaviours the thing.
If you hide your drinking, if you miss responsibilities, if you can't stop drinking once you start, if your drinking leads you into dangerous or embarrassing situations, there's a good chance you're an alcoholic., even if you only drink a handful of times a week, a month, even a year.
I've seen it all here.
If your drinking is causing you problems, places like AA and right here at SR are good places to be.
D