UCSB v. UCSD-Revelle

I got into UCSD for Math-Computer Science while for UCSB I got into Statistics. I’ve haven’t heard many great things about Revelle, but I will be done with IGETC so would I have to not worry about all those general ed requirements that Revelle is known for right? I’m also trying to switch into a major that’s in the field of cognitive science or bioinformatics and was wondering how difficult it is to switch at either college. Any help would be greatly appreciated.

call the dept undergrad advisor at each school and ask about changing majors to find out how difficult it would be (and if it is allowed for xfer students)