I dislike both coins, but I have to admit that DRK has surprised me. I thought it wold have been out of the game now, given every alt, and BTC, is taking a bashing.
XMR, well I have no reason to see it beyond a small-time operation on Poloniex. I don't think DRK has been shilled anywhere near the extent of XMR. I have a litter of deleted posts from moderated XMR threads.
I have none from DRK thtreads, nor do I notice it being shilled so much.
Someone could do a count over 6 months, if they can be bothered.
In saying that, I see no point to DRK, it is a variation on everything else.
But it has been a success, there is no doubt of that.
Putting XMR against DRK is like putting Digitalcoin against Bitcoin.
The winner is not difficult to spot.