@deluxan Since A&M switched to a new housing software last September, called StarRez, it appears you not only will get to choose your dorm (subject to availability) you will also get to choose the open room you want. This is the same format as my elder two who attend other colleges. Up to last year, an applicant would chose up to 5 dorms/room types in order of preference and A&M would place you in one of your choices, subject to availability, and assign your room.
You can read more about it here as well as logging in to the housing portal. https://reslife.tamu.edu/tamu-launches-new-self-service-portal-for-housing-applicants/