Wine snobs are definitely up there.
After doing a short stint in a well know wine warehouse, it was amazing to see just how different people's tastes are - I was very much in the camp of believing that most wine buyers are pretentious ****s; but generally changed my mind over time. Sure, there were a few customers who really were up their own ****, and would almost go out of their way to 'outsmart' the trained staff - but they were few and far between once I appreciated wine more.
Prior this stint, I would occasionally pick up a bottle of French Merlot and would sometimes enjoy it, and other times, grin and bear it - thinking that an £8 bottle should be decent enough. But after a while of working in a wine-based environment, I started to appreciate cheaper bottles of red, from other areas of the world - and slowly, moved completely away form the Merlot grape, and my go-to easy drinker became Malbec - either from Chile or Argentina.
My palate was never great though, so the fine wines were often lost on me - same with white, rose and champagne. But full bodied red wines became quite a journey, anything heavy and woody/smokey was a winner with me, as were some of the Spanish Riojas, and I absolutely love the "Ravenswood Lodi Old Vine Zinfandel" - yum yum yum! I still have a few bottles of that at home, along with a number of others I purchase when working in the warehouse.
I probably sound like a wine snob now
But it is actually a really interesting drink, so much variance in taste, and even more when you pair it with food!
I have since moved onto whisky, and although I really cannot pick out the flavors that experts and fans report, I enjoy the subtle differences of the whiskys I have purchased over the last year or so - but I really dislike anything that is medium/heavy peated - it just tastes wrong to me; it tastes like a wine that has corked - like a wet leather sofa that's been in a fire before