Pepperdine is a beautiful campus and a decent school, but if BigLaw is your main goal the odds of it happening from Pepperdine are minimal. It is also never a good idea to go to a school with the intention of transferring. Almost every incoming 1L at every school believes they will be in the top 10%, which is likely what is necessary to transfer into any of the schools you have listed. It is not a knock on you, but you will only have a 10% chance of finishing in the top 10%. If BigLaw is your main goal then your only options are to continue taking the LSAT until you get a 165+ score.
I do know many people who have had successful careers as lawyers from Pepperdine, but none have or are currently working in Biglaw.