Right now, they're not holding any new hire classes until may/june from what I understand. People were sent to all of the bases from the classes held earlier this year. They're not sending all the new hires to any one particular base. During your class, they announce how many vacancies there are at each base, and you submit your request(s). Your base is awarded based on class seniority, which is determined by age. No one knows how things will be once they start hiring again, but based on what we've seen over the last year, your chances of ending up in CLE or EWR are equally good as LAX or ONT. Its not the end of the world however if you don't get what you want, becuase you can trade bases, or submit a perm bid for what you want. You likely will get what you want fairly fast.