Could a Dwarf melee with a Balrog?

[Pitchwife]

The more I ponder this question, the more I realize that the crucial extra quality inherent in the High Elves of Aman was entirely spiritual and had very little to do with classic heroic virtues. Being nourished by the Undying Lands may have enhanced their physique, but that isn't the whole story, either; rather I think being instructed by the Valar and Maiar made the difference.
Obviously my last post didn't quite convey what I mean, but to borrow a metaphor from Christian mythology: they had something vaguely like the authority over demons that Christ gave his apostles - not in the sense that they could simply banish or exorcise a Balrog, but having great power against both the Seen and the Unseen they could withstand any servant of Morgoth on its own spiritual turf, trusting that divine blessing was on their side and that, even if they fell, evil could never prevail finally. Gandalf on the Bridge of Khazad-dûm is the perfect example.

However (I'm just being obstinate now), suppose a truly heroic Dwarf had crossed the Sea when the Trees were still alive, had seen the Light and sat at the feet of the Powers, and all that, would he be able to match the deeds of Ecthelion and Glorfindel? I dare say he would. But this is, of course, idle speculation.