There is one big difference between these two turntables that would lead me to choose the Artemis, all other things being equal. The Artemis uses a kind of capstan to wrap the tape drive around the platter. This has a very important effect to greatly reduce belt creep, a major drawback of belt-drive. Also, tape drive is a good way to go. I am rather surprised that no one has mentioned it. I don't think Artemis has done a good job of "selling" this feature.
On the other hand, I think Artemis uses DC motor and DPS uses AC synchronous. For much more uncertain reasons, I prefer AC.