Although you have to make the ultimate decision, let me tell you about a few things that you may not have considered.
I think most people will agree that besides Merced, which is new, UCR is the least prestigious in the UC system. I don’t know how many of their students make it to USC Pharmacy school, so I won’t comment further on whether it is the right school for you. Perhaps you can find out the admission statistics through either USC or UCR.
Now for PCC, or any JC in general, if someone told you that you are guaranteed admission to a UC such as UCI or UCSD but you have to take certain classes and keep up a certain GPA, do you think you will be able to do it? The exact units you need are 60 units (two year’s worth) and a 3.0-2.8 GPA. What I am talking about is a program called Transfer Admission Guarantee (TAG).
Of course, it won’t come without hard work. You will have to keep away from distractions for two years and keep up a B average or better. At a JC, the classes will be considerably harder than high school. Also you required to take certain classes and some of them can be difficult. I mean you are not taking Intro to Weight Lifting or Music Appreciation classes here.
One thing I have to tell you about JCs is that large percentage of the people are not very serious and you may fall in with the wrong crowd. Also if you choose the JC route, you will miss out on the traditional college life such as living in the dorms away from parents. When you transfer after two years, you will be at a new school, possibly knowing no one.
There is also an option of transferring from UCR to another UC campus. Normally you do this after two years at UCR. Since you are considered “transferring up”, you will need excellent grades. Also keep in mind that when UCs admit transfer students, priority is given to the JC students, not the lateral UC transfers.
So the question is, are you willing to sacrifice two years for a chance of greater gain? Also different JCs have TAGs with different UCs so if you have a particular UC in mind, you may want to look besides PCC. I believe TAG is not available for UCLA and Berkeley although there are programs that will better your chances for admission. Of course, you can apply straight without the TAG but it will keep you motivated.
BTW, I believe SMC has the best transfer rate, although I could be wrong, so I included thier website also.