I'm a home brewer, so I have to say beer, but that comes with a caveat. I don't care for Hoppy Beers. You can keep your pale ales, IPAs, and Pilsners, I like a nice brown or red ale, or porter. On a cold day I like a stout. By the same reasoning, I don't care for Dry wines, much prefering a sweet red or a Riesling. Next year I start culinary school, which means I will end up taking a wine appreciation course, so I will learn more, but beer is still my preferred alcoholic drinking beverage.
I wonder how many people have given either a decent shot? I know it took me a LONG time to find the beers that were right for me, and before that I thought it was all piss water. But I also found I didn't like wine either, keeping the view that I could get sour grapes cheaper by finding old grapes at the grocery store. I drank liquor, in many a myriad form. I still prefer vodka or rum (spiced, and not) for my mixed drinks and social lubricant, scotch for drinking straight (I like Glenlivet and Lismore). But I digress. There are as many different kinds of beer as there are wines, and a great many people in my experience don't take the time to learn about them before dismissing any them.