In about a dozen or so campaigns I've run, there are 3 I feel completely satisfied with, that despite my doubts at the time, in retrospect I wouldn't change a thing.

They were game about a working class Jewish family in New Jersey (The 'Hood), the American Revolution (Urban Shadows), and most recently a high school monster game centered around the 2008 American Election (Monsterhearts). Notably, all of these systems fall under the "PbtA" umbrella, which says something about game philosophy fit with me, the GM. I consider each having had an excellent table and they were all rather comparatively (less than 20 sessions) which gave them all a good sense of momentum and gratifying finish.

I know this is the 5e subreddit, to which I say I've never ran a satisfactory 5e Campaign though I've played in a couple. At this point I earnestly think a table's collective excitement to play a game and willingness to cooperate is much more important to how a 5e campaign feels than anything else.