Cartoons in the early to mid 1990s were much more imaginative than what we have today. Dexters Lab, Powerpuff Girls, 2 Stupid Dogs, Ren & Stimpy, Rugrats, Batman: The Animated Series, Bobby's World, Doug, Ren & Stimpy, Rocko's Modern Life, Johnny Bravo, etc. were all imaginative and unique. Nickelodeon and Cartoon Network have somewhat deteriorated since 2000 (Rocket Power, ugh). The only decent cartoons on Nick are Fairly Oddparents and SpongeBob (I prefer the 2nd and 3rd seasons of SpongeBob).
What happened to cartoons being cartoony? Slapstick comedy, crazy facial expressions, witty humor, those were all hallmarks of the classic Looney Tunes and MGM cartoons of the 1940's and 1950's. The cartoons of the 1990's brought back that style, but then it all faded away. I miss the days when cartoons were cartoony...