I Think the gap in dps from a Melee and a Ranged dps comes from what they are able to do where Ranged usually wreck in Aoe damage and where melee is purely done for Single Target. Yes melees have AoE moves, but get easily Outshined by BRD, SMN, BLM and even SCH. So to me, it is only normal that they wreck shit up on single target, since that's their focus.

Considering the fact that ranged dps can do a considerable amount of DPS on Single Target While being able to burn the s*** out of adds is an enough reason for me to have melee dps being top dps on ST.