Originally Posted by Comics N' Toons
That is true. I guess its all about the vision of a particular series.
If anything Bruce Timm was probably a bigger fanboy than Paul Dini, in some interviews of the animated series Timm talks about getting fanboy angry at first due to the changes to Brainiac coming from Krypton, but that then he started to like the idea, so most changes to from the mythos probably came from Dini and the writers.
While not on the level of Fleischer, Superman: The Animated Series really deserves recognition, very well done cartoon, also had an interesting look.