12 Nov 12 9:35 pm
I understand your concern about the way Traffic Travis is estimating competition - although I don't think PR3 (or even 4) sites are hugely concerning; getting up to PR5 and 6 may take quite a while longer.
The thing to always keep in mind is that Traffic Travis can only guestimate difficulty. It does its very best (we've made sure of that) but, in the end, it's still only using a limited number of factors - it can't go out and do things like look at the competition's homepage and go "well, they're clearly not very good, we could beat them easily" or "well, they're outstanding - we've got no chance"; and, really, the same applies to any automated tool that guestimates competition.
At the end of the day, it's still just a computer looking at numbers and going "Yep, look pretty good".
Just take the results with a grain of salt, and do some independent verification (as you are doing). That said, don't be scared either; just because a site is shown to have a higher PageRank, or the like doesn't mean you can't muscle in on its territory :).