Daz Studio seems to have an internal design which allows modules to be easily added. The base program is free while mopre of the modules are paid for. Some of the modules are reckoned better than anything Poser has. With Poser, on the other hand, you have a lot of people with a lot of experience of using the program. Poser dynamic hair was badly described in the P5 manual, but some users were able to figure out what to do, and have told everyone.