Just saw a cooking show where they marinated King Salmon in Scotch, then solid brined...(like a buried rub) and cold smoked it.
The problem with alcohol and brining steaks is that the alcohol tends to pull moisture out of the steak....not something you want...
If you want to marinate stick with Worcestershire, oil, vinegar, liquid smoke, and Lawry's seasoned salt....or one of the packaged marinating mixes.
If you absolutely want to use alcohol....use a red wine and marinate for at least two days...but I'd save that kind of stuff for a roast.
One thing I always did was take two forks and turn them back to back and alternate stabbing the steak with each one until it was totally punctured before marinating.
Marinate overnight...and you'll have a steak that practically falls apart....(but is still juicy....providing you don't overcook it.)
Oh...and a pat of butter on top after you cook the first side never hurts either!