FAT and SFO are two of the most junior bases on the Brasilia, but are both pretty senior on the RJ. If you don't want to move I would say that you should request the Brasilia. You'll get one of those bases out of training. After a few years when you can hold the base on the RJ you can transition over.

I was on reserve in FAT for about six months on the Brasilia. It's all dependent on movement though. I know people who were hired about a year ago who were never on reserve. They got a line in FAT right out of training. They weren't running transitions for a while after I was hired and I was on reserve for 6 months. I got a line as soon as the transitions started up. Someone hired in 2007 likely spent a few years on reserve. It's all timing and luck.

On the CRJ with a year seniority I wouldn't hold a line in any base, and wouldn't even be close to a line in FAT, SFO or LAX. If you want those bases your quality of life will be a lot better on the Brasilia.