If you are ranking high enough to transfer, you are probably getting a scholarship right? I guess it depends on 1) if you plan on working in LA, and 2) what kind of law you want to practice.
Regardless, have a good shot at Biglaw if you on top at LLS. Plus, you will end up with less debt.
I would say if you are planning on going east coast, go UCLA, otherwise I might stay at LLS and save the cash.