Nice point in the comments:
Kyle Broflovski’s rather interesting as a comic foil to Eric Cartman: Eric Cartman is anti-Semitic and Kyle is stereotypically Jewish to the point of self-parody, yet it’s Cartman who displays all the worst traits anti-Semites typically attribute to Jews (he’s greedy, thoroughly unscrupulous, and manipulative) whereas Kyle is generally the agreeable and sensible one.