In terms of a quantitative aspect to consider, Williams, by percentage of students, enrolls more economics majors than the vast majority of other colleges in the country. At 94 recent graduates in economics, Williams — somewhat remarkably — graduated more majors in this field than the much larger JHU (79 in the source linked below):
https://nces.ed.gov/collegenavigator/?q=Williams&s=all&id=168342#programs
https://nces.ed.gov/collegenavigator/?q=Johns+Hopkins&s=all&id=162928#programs
The atmospheric differences between these schools aren’t trifling in their nature, though, so consider their general characteristics thoroughly before making your decision.