Actually his vocal range is very limited. He is extreamly comfortable in the low ranges but does have trouble with his high pitch. (he is not horrible at it by any means, it's just that you are incorrect in your analysis of your 'boy' too).

I would say David A is a Mezzo Soprano and would have a hard time hitting and holding low C so I would not say his range is off the charts. In fact I think David C and Syesha would mop the floor with him on the brighter high notes. Range goes to Cook. Now his pitch of the notes he does sing are extreamly good.

your comments are as subjective as everyone elses.

they are both exceptional.