Both RDU and LGA are pretty junior, but LGA is really junior. Pretty much expect LGA if you get hired here. HOWEVER,.... after not too long you could almost certainly switch if you are willing to accept a reserve spot in one of the others. Almost nobody who can hold a line bids reserve so you could probably get your choice quickly or even right out of training if you bid for a reserve spot.
I have been at AWAC 4 years and will be about nr. 10 in RDU on the capt. side of things, out of about 30 lines or so. I think. Something like that. Still on RSV in DCA.....