Regarding alumni engagement, that’s a bit harder to measure objectively, but I think some proxies might be alumni giving and alumni weekend attendance. It seems reasonable to think alumni giving to college and going back to reunion events are more involved with other forms of networking with the college. USNWR used to report alumni giving rates each year. I don’t think they’ve done that this year yet, but here’s a list of high giving rate schools from last Dec spanning both LACs and universities. According to them, Carleton had the sixth highest rate. I recall Haverford also doing well in the past, but it doesn’t appear they made the top 15 last year, which is as far as this particular list goes.
From what I’ve heard and seen (based on casual spot checks of various college’s alumni weekend reports in the past), Carleton has an unusually high percentage of attendees at such functions, larger than the other schools I manually checked and in some cases more than schools several times its size. I don’t know about Haverford’s turnouts.