As long as you have comparable numbers, I don't see why it should be any different than anywhere else you apply for law school. The whole "increasing diversity" argument doesn't stand up in certain circumstances. For example, if you are a URM and applied to a law school affiliated with your undergrad how could they deny you on the basis of "diversity." This is where increasing diversity becomes a slippery slope. If you have the numbers, you should get in. Ultimately the school will admit enough "diverse" candidates and they are not likely to get so many applications from those that attended the undergrad schools there to override their diversity rankings. Either way, it's mainly about the numbers. If you have them, you stand a chance, if you don't you're not getting in.