I hate seeing threads go un-answered so I’ll chime in. I went to CSUN and while the program is good at preparing you for CPA exams (I’ve passed 3 so far) I wouldn’t want to go there again. Some people really like it there but I hate the underdog culture we have of living in the shadow of USC not to mention certain stupid courses like Gateway and 351COMM. I remember turning down SLO and if I had a chance to do it again I would have gone there even if it was a riskier investment if probably would have paid off more.
UCLA accepts just a handful of Biz transfers every year. I don’t know your stats but, for most people, they aren’t realistic transfer targets. UCSB has the TAG program so, they could be viable. That link will show you the transfer stats by major for each UC and should help you assess realistic targets.
As far as CSUFullerton, Northridge and LB, I’d say LB has a nominally better reputation but, it really won’t make a difference - as far as interviews, job prospects, etc. What will matter is solid grades and decent experience… which you can get at all of them. Assuming you get in, go where you will be happy and make the most of the opportunities that campus offers.