Rob Liefeld's Captain America looks morbidly obese and badly deformed.
I've done two drawings aping Liefeld's style:
Man and Woman
He got paid millions for drawing stuff not much better than that?! But I say again I admit that drawing stuff Liefeld-style is oddly fun and addictive, even if the output has relatively little craft behind it. And if Rob Liefeld does something quite good, you find out that he has blatantly ripped it off something better in a tacky way.