(a) Letters testamentary may be granted to one or more persons found to be qualified. Preference for appointment shall be in the following order:
(i) The person designated in the will;
(ii) Any beneficiary named in the will, or a person nominated by the beneficiaries;
(iii) Any creditor of the decedent, or a person nominated by such creditor;
(iv) Such other person as the court may find to be qualified.