They're all the same brand, they're all small motherboards and there's no fundamental difference in the interface. ds2 has an old printer interface. If you have this printer, then use ds2 or else it doesn't make any difference.
It's all h61 chipsets, it's all the same, it's all the same, it's all different in the number of usb there's 8 usb in the s1, only 4 USB in the ds2