^
I agree completely with this post, which is a different topic entirely from undecided students.
LACs are excellent choices for students interested in the sciences as well as those interested in extremely popular majors (e.g. econ and poli sci), as they can bypass the large lecture classes of most universities and - in the case of the sciences - get involved in research earlier and more actively.
Conversely, universities are excellent options for students interested in less popular majors with small class sizes (e.g. geology, classics, math, linguistics, area studies majors, etc.).
Of course, that’s not to say that you can’t get a great biology education at a university like UC Davis or a great math education at a LAC like St. Olaf, nor do LACs always offer smaller classes. Wake Forest offers smaller classes than quite a few of the elite LACs, for instance.