You'd think that but I still got the CRJ when I started despite gross understaffing on the EMB at ORD. Id say you have a 95% chance of getting the EMB when you start here but if you are likely to be the youngest in your class (seniority within the same date of hire goes off of date of birth), you could be that 5% that gets the CRJ.

Just a word of caution. Welcome to the dream!