The petition shall also set forth the name and address of the person or institution, if any, having actual custody of the ward and the name, age, relationship, if any, occupation and address of the proposed guardian, and if the nominee is a natural person, the number of wards for whom the nominee is presently acting as guardian. Notwithstanding any law as to priority of persons entitled to appointment, or the nomination in the petition, the court may appoint some other individual, a bank, or trust company as guardian, if the court determines it is for the best interest of the ward.