western requires a full year of biochem, unlike other california schools. one of the main pros of western is the block system, as mentioned.
uop specifically requires a letter of rec from a pharmacist. it is also a three-year program, which can be a pro or a con for different people.
llu is a seventh-day adventist school and has a unique environment compared to other schools: they don't sell caffeine on campus, weekly church meetings, classes end early on fridays, etc. they also do not participate in pharmcas, so their application process is completely separate from the other schools. this school is probably one that you want to definitely take an in-depth look at since their environment is a bit different than other schools.