I have to put three caveats on this post:
1) I searched and was unable to come up with an existing thread
2) I am not talking about TPAC Y, where adult beverages are gratis
3) I'm a lush when it comes to redeyes. Please keep the personal comments in PMs

Flying recently, I've been changing my drink selection from Bloody Mary (too much sodium) to Gin & Tonic to Jim Beam and Ginger Ale. As I keep switching around, I wonder to myself... if I'm going to have 3 drinks on a long flight (longhaul or transcon), what is the best bang for my 15 bucks?

I'm thinking that it's a G&T since Tanqueray is 47.3% alcohol, but I am open to your advice.