Simple reason for why the Batman and Superman series looked far superior to the '94 Spiderman: Paul Dini and Bruce Timm, who also went on to do Batman Beyond. The visual style they had was far superior to anything Marvel's DIC-produced cartoon could muster. Style can go a long way in making even a limited animation series (done on fours rather than twos) look superior. Recent examples of this include Dexter's Laboratory, The Powerpuff Girls, Samurai Jack and Clone Wars, which all share one common denominator: Genndy Tartakovsky.