correct me if I'm wrong: law students generally go straight to law school after undergrad, which basically means that numbers (GPA, LSAT) are the most important criteria in evaluating the applicants (along with essays, I'm sure). Business school is a completely different story though. Most applicants have an average of 4 or 5 years of full-time work experience, which allows the applicants to develop their mentality and maturity. Since each full-time job is somewhat different from the other, it'll be extremely hard to really pinpoint down who's a better applicant without looking at all the files together, holistically. Having said that, princetonreview can simply use numbers (GMAT and GPA and # of years of WE) to gauge a student's chance, but nothing is really said about the type of work and leadership ability of the applicants. Without looking at what the students have been doing post-undergrad, it makes it merely impossible to judge if someone will get in somewhere just by looking at the numbers.
Very true. I guess where I see some similarities is in the part-time law school predictions. Typically, part time law school applicants resemble b-school applicants, in terms of work experience playing a significant factor in admissions decisions. There are part time program predictors for law school applicants, and so I guess I figured if they could do it for law, someone could have created something similar for us!