As a former 1L SA, I'd like to respectfully disagree with the OP. If you know you want to work in a firm, why not try to work in a firm as a 1L? The jobs are hard to get, but if you get one, there are some big perks: 1) you get to find out earlier than your classmates if a firm is really for you. Yeah, you get a lot of fluff work as a SA, but it will be clear after three months whether you fit in at a firm and would want to work there. That way, if it's not for you, you have 2L oci to focus elsewhere (gov't honors programs, etc). For me, I decided that even though I love working at a firm, I just couldn't stand the city I thought I wanted to work and wanted to change cities for 2L. Second, even though you're working for a "big bad corporation," most SA's do a lot of pro bono work and volunteering, so you will get to feel like you're doing your part to make the world a better place. 3) It will put your resume a cut above your classmates if you work at a reputable firm 1L and decide to reinterview for 2L (assuming of course that you got an offer and didn't burn bridges with your 1L firm).
As a former 1L SA, I'd like to respectfully disagree with the OP. If you know you want to work in a firm, why not try to work in a firm as a 1L? The jobs are hard to get, but if you get one, there are some big perks: 1) you get to find out earlier than your classmates if a firm is really for you. Yeah, you get a lot of fluff work as a SA, but it will be clear after three months whether you fit in at a firm and would want to work there. That way, if it's not for you, you have 2L oci to focus elsewhere (gov't honors programs, etc). For me, I decided that even though I love working at a firm, I just couldn't stand the city I thought I wanted to work and wanted to change cities for 2L. Second, even though you're working for a "big bad corporation," most SA's do a lot of pro bono work and volunteering, so you will get to feel like you're doing your part to make the world a better place. 3) It will put your resume a cut above your classmates if you work at a reputable firm 1L and decide to reinterview for 2L (assuming of course that you got an offer and didn't burn bridges with your 1L firm). So that's my sell. Plus, the money is nice- it helped pay for my summer vacation