I would say it depends on the date.
If I was taking a high-class beauty to a nice resturant then I'd a) drink wine b) wonder how the fudge i'm gonna afford the bill, and c) wake up and realise that no high-class lady would go to a nice resturant with me unless I had her pet dog hostage.
If i was taking a nice, fun girl to a decent bar then i'd drink a couple of pints to relax then reflect her drinking with mine
If I was dating my usual women then I'd knock back half a pint of meths before I left the house, take her to the kebab van behind the train station, neck a litre of Tesco Value Vodka, vomit in her hair and still end up with a second date. (I like classy girls you see)