<p>Wesleyan and Haverford are probably tops in science for LACs. They represent the extremes in LAC size (Wes 2,800 and Haverford 1,100) but both have excellent programs. I’m fairly certain Wesleyan’s size gives it a course breadth advantage over most, if not all, of the other LACs (including Williams) and will have at least as many faculty as any other LACs in the sciences. </p>
<p>but in general, like you said, all of the NESCAC schools will have good science programs, plus schools like Swarthmore and Haverford. I would also keep in mind other aspects of the school, like location, calendar (semester vs. 4-1-4), and core vs. open curriculum (Amherst and Wesleyan).</p>