So I applied to a few places for a summer REU internship for physics research. I got made an offer from Brown University and Notre Dame and am trying to decide between the two. Brown offers me research in marine geophysics/topology sort of stuff and a $3700 stipend. Notre dame offers me to choose the discipline (condensed matter, particle, Astro, etc) and I get a 5100 stipend. Both fund round trip expenses and offer housing. Obviously Brown is a bit more prestigious and I would pick it immediately but geophysics is not at all what I plan on studying, so I'm stuck. What would you choose?