The myths around absinthe are amusing, to say the least. Most claims of it being a hallucinogen stem from 19th century research FFS. Most people who believe it causes hallucinations nowadays are hippies, stoners, ravers, and other such daredevil lifestyle types who are probably so brain fried that they can't tell reality from hallucinations even when sober.
Anyways, as far as favorite hard drinks go, I have to say a good mudslide is quite a treat. Of course, I like my liquers. Nothing like a good dose of sugar while you're getting smashed.
Also, line up shots of tequila and I can prolly drink anyone here under the table. Love El Cazadores.