In my humble opinion, these tool sets are some of the best I have used. I have created fully parametric inner door panels, which are very complex, with these tools. I can't show any pics of given door panels as that would be a breech of contract but I have done it.

The work flow for me is not totally set in stone but there are generalities in my methodologies that I adhere to.

Do not get me wrong when I say some of the best here. There are plenty of things that I would change within both tool sets GSD and Freestyle.

Now UGNX has some tools that far surpass what V5 can do as well.

I apologize if I seem a bit aloof in picking a "best" package but there is no best at everything CAD package. Some people like ICEM and Alias. I can understand why they do but I will always feel they are relatively inferior because of there lack of para metrics.