To hyphen or not to hyphen that is the question.
A hyphenated name has less value than the same name without the hyphen.
However, the true value is only determined when the name gets sold.
Value is also created by driving traffic to the domain. You can turn
http://www.x-x-x-x-x.com into a $10K name simply by creating content and driving traffic to the domain. Build up targeted traffic on a domain and its value is now a different story.
So, your question is hard to answer, there is no defiinate answer. It all depends on which name has more links pointing to it, the traffic it gets, etc. Search engines may favor the name with the hyphen as some have speculated, that the bots can distinguish the keywords easier. But, this is speculation.
As far as whats worth more, a .ws or a hyphenated .com, thats a close call. I would say paris-hilton.com is worth more than parishilton.ws wouldnt you agree? Maybe not, but thats why we trade in different extensions. Some prefer others.
Dont get me wrong, I am a big fan of .ws, too, having launched a few .ws sites recently.
Hope this helps.. just keep an open mind. And spend what you can afford, be careful and have fun...