Top priotity goes to those whose MOS will use the training they receive at those schools, so if you're 11B then you would have a better chance of getting into the more specialized schools, let alone multiple ones (Air Assault is in Ft. Lewis, WA), but I have no idea what your Natty Guard status will do for that.
For myself, I fought tooth and nail to get an Airborne slot, and now the Army wants to send me to Korea this summer instead, so don't believe anything is definite until you've reported to the school itself.
Some advice, however, don't take "no" for an answer, just keep on them about giving you a slot, and eventually you'll wear them down. And then they'll send you to Korea.