Out of respect to Jim Salk and Dave Wilson, I will keep my opinions on this subject muted. I will say this however, the original poster is going to have a difficult time unearthing someone who has actually owned both speakers under question, let alone finding someone who was/is able to accommodate both products in a way that will allow them to sing to their full potential. So far, nearly all of the feedback in this thread is, surprise, surprise, chalk full of bias.
I'm also going to go out on a limb to guess that the original poster is proposing this question because they are narrowing down their search to either a used set of Wilson Watt Pup's, or a brand new pair of Salk HT3's. It's the only way that I can see any logic behind the question. At that point, the value proposition of each product becomes quite linear - thus making for a more interesting comparison.