<p>Suggest you get from the library, or buy, the guide “Ruggs Recomendations on the Colleges”. His guide attempts to evaluate what programs are considered relatively strong by students at each school. via surveys, among other things.</p>
<p>Generally though, one might loosely expect a “trickle down effect”. To the extent that both professors and grad students (TAs for sections & graders) are going to be involved in your education, it can only help to have the “best” professors and the best grad students. Though actual teaching ability might be completely uncorrelated.</p>