Darkcoin uses a trustless system of multiple premixing advanced conjoin variant more like it.

More pros for darkcoin

- while darksend+ is still closed source how it works has been explained (unlike PosA - could be great, could be useless, who knows, hope it's good because competition is good)

- Code review by the creator of conjoin sudoko - kristov atlas so if he says it's good, it's good.

- Higher volume over a longer time period (cloak is shooting up and well done to them but on average DRK has had way higher volume for way longer)

Cons
the instamine could you include http://wiki.darkcoin.eu/wiki/FAQ#Was_Darkcoin_Instamined.3F
Written about in detail and people can make their own minds up.

And include sources in general..