Vodka is my go-to liquor when i don't have something else in mind. A close second is gin, and depending on the brand, I like Gin better. Whiskey, spiced rum, and bourbon are drinkable, but I prefer white liquors. I hate tequila unless it's 100% agave, and the cheapest 100% agave bottles i can find are $30+ and i can't afford to drink that all the time, so I rarely drink tequila.
Beer is decent, I don't really have a taste for it. I've never had a beer just to enjoy it, i just drink it to get wasted. It's also the most economical way for me to get drunk, I can buy a 30 for 20 bucks and it can be consumed at several different paces. For example, a rack will last me two nights. A rack will also last me a day for my occasional bender. It is also a good size for me and a friend to consume in a few hours.