<p>What are your post-graduate plans? Personally I would mark off WashU, NYU, and UMich simply because there is a massive difference in the price and Grinnell/Macalester are comparable to all of those schools. Of those on your list, the one that really stands out as "not worth the money compared to the others" is NYU, followed by UMich. Both don't seem to have what you want: a more personal environment. However, realize that if you end up studying in their business schools (Stern/Ross) you will essentially be part of a smaller college within the university. If you can get past the cornfields, Grinnell is a very personal, excellent college. Macalester is also nice - a rising star of sorts - that is located in a very cool (both literally and figuratively) part of the country.</p>
<p>You've also given two scenarios: business or bio.</p>
<p>Of your choices, WashU is probably best for bio, but it is also notoriously hard! For business, your best bet is either NYU or Michigan. The two LACs don't do business and WashU's business program isn't necessarily "top tier."</p>