DMN = cheaper. easier to get a larger holding, so a smaller share price movement will give you a larger gain.
That said, I own both. DMN will be harder to dispose of in my opinion, as the break through to 0.5 cents, to be able to sell at 0.5 or even 0.4, will take alot longer. There's something like 125m volume to break through before your sell order is executed.
ORO has around 25m volume to get through before your sell order is executed at 0.7 (assuming you bought at 0.6). Consider the price is double that of DMN's, and lower volume to break through, it is more likely to achieve a short term profit.
DYOR at the end of the day, DMN and ORO could fall out, or run other projects that could make/break their businesses in the process.
DMN Price at posting:
0.4¢ Sentiment: LT Buy Disclosure: Held