<p>I agree that fit is a better reason attend a school than reputation or ranking, especially when they are as similar as Chicago and Dartmouth. The differences between the rural setting and the urban alone should give you a clue as to what might suit you for the next 4 years.</p>
<p>That being said, international reputation and rankings tend to favor large universities over colleges like Dartmouth. These rankings are all open to question—absolutely—but Chicago tends to fare very well in international reputation even versus the Ivies. See:
[World</a> University Rankings 2012-2013 - Times Higher Education](<a href=“http://www.timeshighereducation.co.uk/world-university-rankings/2012-13/world-ranking]World”>World University Rankings 2013-14 | Times Higher Education (THE))</p>