HL is more difficult than Calc BC, so yes Calc AB will be much easier even than HL1 (not exactly easier, but slower paced, with more repetition, and no “other math” since HL covers other fields than Calc.)
Considering you don’t want a STEM major, I’d pick Honors Physics (or AP Bio), Spanish 4, and Calc AB (+ HL English and AP or HL History/social science).
Spanish 4 would be especially important since it shows strength in “non stem” areas, which you’d apply for in college admissions.