Well I'm just gonna stick to my meaning because i like it more, it has more heart to it.
Either way I do want to debate this and I think I have a few good points, so I'll just do it annonomously.
And that mainly is, is that most of these cartoon's main characters lack sharpness to them, all of them look too soft or curvey. Star from Star vs does a decent job at this because there are at least some sharp lines in there and she feels the most distinct a=out of all of these cartoons pointed out here, not including gumball of corse.
A good cartoon that did the softness on there characters well is Wander over Yonder, mainly because the characters had multiple rules that had to be followed when it came to there softness and there shapes.
Most modern cartoons hardly follow there established rules, have very weak shapes, and hardly ever even have a good line of action.
Another good example of a good cartoon is mighty magiswords, now hear me out on this one, it actually has a distinct and refreshing artsyle, and despite having a lot of tweening, it does have really good keyframes and it has a nice grasp on shaps and line of action.