Kylie's Merlot. Not because of a hangover, I only managed a glass, just thought it was disgusting. Will happily buy her other two wines again though.
Have had a bad experience with gin (was at a gig and thought gin + coke was a good idea for some reason) and don't particularly like the taste so avoid that.
Tequila, southern comfort and malibu tend to be my go-to spirits these days