DD Offensive Nite has its uses like as a leadI agree, with the state of the metagame, Dragonite definately deserves more usage than Salamence. But I just have to facepalm when people attempt to run offensive DDNites or Draco Meteor MixNites just because they see that Dragonite is higher in the usage stats than Salamence.
But outside of very few occasions I also agree with you...that it really is not the offensive monter that DDMence is. MixNites are fine but I usually use it as a wall breaker rather than as a...well mixed sweeper, which MixMence is simply just better at.