Rewatched single episodes of a few shows:
Danny Phantom - Still a very enjoyable show, with a lot of neat action and a nice sense of humor. I understand, why I liked this show so much when it was new.
My Life as a Teenage Robot - I do like the artstyle, and it's not bad, but I feel like it aged worse than Danny Phantom. Don't even know why, exactly, but it just felt goofier and less meaty, or something. Which might just be me, not liking classical cartoons that much, which this show seems to draw some of its ideas from.
Starla and the Jewel Riders - Uh, honestly, considering what it is (a 90s cartoon for girls), it was pretty enjoyable? Like, there are way too many cute animal companions and the writing is very 90s, but...there is also a bit of continuity, the heroes are magical girls, who actually fight and can be somewhat badass (not too much, but, again, 90s) and the CGI was probably pretty nice, at the time - I remember loving it, when I watched this show as a kid. I honestly could imagine watching more of it.