I would say Gravity Falls much more so than Phineas and Ferb. The latter doesn't have much of a series-long story arc, whereas the former very much does have on

I would say Gravity Falls much more so than Phineas and Ferb. The latter doesn't have much of a series-long story arc, whereas the former very much does have one. Craig of the Creek was also pretty good, though I don't think it has a wider arc (I am not entirely certain though.)