Which of the following styles has the lowest level of perceived bitterness?

The style with the lowest level of perceived bitterness is Wee Heavy. This is a strong Scottish ale known for its rich maltiness and sweetness, which often overshadows any bitterness present. The focus of a Wee Heavy is on malt character, showcasing toffee, caramel, and sometimes dark fruit flavors.

In contrast, American IPAs and American Pale Ales are hop-forward styles characterized by their pronounced bitterness, typically measured in International Bitterness Units (IBUs), making them significantly more bitter than a Wee Heavy. Czech Premium Pale Lagers, while less hoppy than IPAs, still possess a noticeable bitterness, especially compared to the malty sweetness of Wee Heavy. Therefore, due to its emphasis on malt flavors and lower hop content, Wee Heavy stands out as the style with the lowest perceived bitterness.