I don't think the majority of players would choose to live in either the areas close to Dodgers Stadium in LA, or in Anaheim. I've read and seen interviews where many players on both teams seem to like being in the beach cities in LA or Orange County - Manhattan Beach, Newport Beach, et al. Distance doesn't always translate to time spent commmuting, either. I've heard of the Dodgers Express bus from Union Station, which is, I think two miles away, taking an hour and a half to get to the stadium because of traffic.
So regardless, they're probably all going to have traffic getting to work and they probably make their decisions based on a lot of factors - how they like the neighborhood, safety, price, schools (if they have kids), what the other players recommend, etc. Not the county. Just because they're an Angel doesn't mean they're in the OC; just because they're a Dodger doesn't mean they're living in LA County.
Having said that, many folks, inside and outside of baseball, find moving to Southern California *in general* to be a really appealing prospect. It might raise the stock for the Angels, Dodgers and even the Padres with some players. Certainly, living in, say, Manhattan Beach has a lot to offer over living in Detroit or Cleveland, for instance...