Kept this mail back unread, umm, depends on your aims and purposes...
DDYN allows you to not require the end user to install the runtime, which for some reason people have issues with sometimes... mostly because it confuses users thinking they need an NVIDIA GPU [YOU DON'T REGARDLESS OF HARDWARE, IT DEFAULTS TO CPU], so you can ignore that requirement, the other is it uses a slightly more recent [Not the latest] API...
However I am yet to fiddle with it properly so cannot give a solid opinion as of yet... but at the moment because I am so used to DarkPHYSICS, I tend to use it for everything at the moment as it is extremely [for me] easy to get familiar with for simple interactions...
Hope that helps...