Harvey Mudd vs Dartmouth vs RPI

I was recently accepted into Harvey Mudd, Dartmouth and Rensselaer Polytechnic Institute. I know that all three have pretty good engineering programs. I feel that Harvey Mudd offers me the best career opportunities, while Dartmouth is well-known and has the best prestige. RPI is offering the most money. I am quite a nerd, but I’m also interested in various other activities, such as sports. Can someone please give me more information (i.e. social life, workload, and overall experience) about these schools?