what they look for is 1L/ 2L jobs that are not big law but public interest as well as prior experience. With the exception of tax this will be true across the board. I am currently in the DOJ through the honors program and was informed during my interview that while they give offers to those with biglaw clerkships, they need to have stats above that of the average candidate and some reason why they took big law instead of government opp. The interviewer recognizes, of course, that a firm summer position pays more - but that is true for the job as well. As for your stats - if you are in the top 1/3 of a T-14 with secondary journal you will be competitive.