Partying hard is the best part of any vacation or night on the town. Sadly, when it comes to sex, drugs, and rock n' roll, not all cities are created equal. In America, New Orleans and Las Vegas are clearly the creme of the crop when it comes to hard partying, but which one is the vice champ? Read on to find out which city is more likely to lead you to end your time there by waking up next to a stranger, in jail, or face down in a pile of your own filth. Remember, the blurry memories are the best ones.

Sex: Both the Big Easy and Las Vegas are packed with strip clubs, but unlike Louisiana, Nevada has legalized prostitution. Bourbon Street may be packed with topless college girls during Mardi Gras, but the deserts around Vegas are packed with brothels like the famous Moonlite Bunny Ranch. Las Vegas wins this one in a landslide.

Drugs: Neither Vegas nor New Orleans has legal drugs or an abundance of psychedelic natural resources like many of the world's other great sinful cities. Las Vegas gets a slight edge in this category because, like drugs, gambling spawns addicts and gets some people high and more importantly, because it's the setting for one of the all-time greatest pieces of drug literature-- Hunter S. Thompson's Fear and Loathing in Las Vegas.

Rock n' Roll: Elvis and the Rat Pack may have made names for themselves in the casinos of Vegas, but New Orleans is the birthplace of both jazz and zydeco. The Big Easy gets major minus points for also being home to Lil' Wayne and Cash Money Records, but Las Vegas also gets penalties for providing a showcase for legions of crappy acts including Celine Dion, Barry Manilow, and Tom Jones. New Orleans definitely has a better rep for live music.

Verdict: Vegas is the original "Sin City," so it's fitting that it wins this battle of debauched metropolises.