I'd like to tag along to Sully's post and add that this airline's staffing situation is always in flux. What is true today may not be true when you show up to class. Plus you really have no idea what base & aircraft choices will be offered to you when you show up...so Sully can put a ton of work into his next post and it may not be applicable at all.

If you do some reading on this board, you can already get a feel for what airplanes are junior vs. senior and in what bases.

You will get a ton of info when you show up to class... so don't put the cart before the horse now. Just go with the flow....thousands of pilots came before you and figured it out without people posting our bids on a public forum.