I watched a lot of CN as a kid. It seems to come and go in waves. Sometimes it's good, and there's lots of good shows, other times it's just dreck and there's nothing to see.
I like the UPA revival art style, and I really admire how some artists can find the most distilled form of a character in that style. I can imitate it, to a degree, but it's definitely not my forte. Powerpuff Girls is my favorite from that era of CN.
Speaking strictly in terms of artistic and authorial inspiration, the two CN shows that have had the most effect on my work are probably Steven Universe and Samurai Jack. For SU I like the vibe and a lot of the in the moment things, but I strenuously disagree with the show on a philosophical and overall writing perspective. For Samurai Jack - it's so artistic, with such concentrated storylines. Probably neither influence is that apparent in my work at the moment, relative to other influences.