<p>Well, one difference is that at the universities you'll be competing with graduate students for the best opportunities -- doing field research with professors, co-authoring papers, etc. The universities may have the biggest and best-funded research programs, but as an undergrad, how big a piece of the action will you get? </p>
<p>At LACs, on the other hand, all the opportunities are open to undergrads, and the profs are focused on working with undergrads. You're not a second-class citizen.</p>
<p>Some research universities have special programs that pair high-achieving new freshmen with faculty who are research mentors -- that is, they join the faculty member's lab as freshmen. In this case, the undergrads would likely not be "second class citizens". Without that guarantee, I agree with TeaTime.</p>