The four choices of electrodes from three miller families {100}, {110} and {111} are studied and its enumerated is done with DFT-NEGF. The HLG is highest and lowest for (110) and (011) electrode device. The lower HLG demonstrates the metallic nature of (001) and (111) devices. The (110) and (001) miller indices are the most and least symmetric out of all under observation respectively.