I’m sure there are varying opinions, but it’s all speculation until someone crunches the numbers. Thankfully, there’s a person who did just that. He’s Scott Janish, a homebrewer and general beer enthusiast whose uses data to help tell some interesting stories about beer (both his and others’).
He plotted the average ABV of a beer style against its average BeerAdvocate rating (the average of all the beers in a style category), and found that, for the most part, higher-ABV beers do receive higher ratings. Styles like eisbocks, quads, and Russian imperial stouts are on the high end of both the ABV and average score spectrum, for example.
The outliers are notable, too; goses and berliner weisses tend to score high despite their low ABV, and American malt liquors score low despite their relatively high alcohol content. Give his full graph a look, and even play around with the data set for yourself.