Star vs the Forces of Evil.
First, don't listen to anyone saying that "ALL FANBASES ARE LE BAD XDDDD". For one, the people saying this are usually the common denominator of that issue. But also, there is a difference between a fanbase being "bad" because they follow the steps of what is expected from an adult website, ie, lewdness, perversion, and fetishes, and one that is bad because its extremely toxic, annoying, full of avatarfagging, viral advertising, and other types of cancerous posts. I didn't see any Star vs the Forces of Evil fans avatarfagging in the Gravity Falls finale sticky, for instance. I rarely see more than two SvTFOE threads at a time. I've never seen a SvTFOE victim complex thread when I saw at least three of them yesterday for Steven Universe. The worst SvTFOE thread is no where near as bad as the best SU thread.
Second, the shows themselves, if you like bland and ugly character designs that clash with backgrounds that don't really fit the style, then you're going to love Steven Universe. If you like character designs that actually have a cute aesthetically to them, with backgrounds that actually fit the show and are still good, you'll prefer SvTFOE. Neither show has characters that are cheesecakingly sexy, and no, the nigger with the dulled down Hartman Hips doesn't count. If you're a "chubfag" or whatever that cancer is, you'll probably prefer SU.
Finally, the plot. SU is basically just a cheap ripoff of Dragonball Z and Invader Zim, while we have no idea where Star Vs The Forces of Evil is going. So, again, SvTFOE wins out.
