I think AP stats is easier than either AP calc. If you’re worried you can’t get an A in calc, then take stats. Just be aware that many/most students in college calc classes have actually already taken calc in high school (not surprising if you consider that over 400,000 hs students are taking the AP calc exams each year). So I doubt it’s going to be easier in college. But yes, it would mean a harder schedule this year and maybe that’s not advisable.