it really depends on the domain.
as a general rule, .org gets more traffic. And with some names, .org gives a sense of a much more 'legit' site, and it works for almost anything. good .info keywords are also up there, but their perceived value has decreased heavily since the free (or cheap) promo, and this is continuing (although NOT for strong keywords).
they both have their place, and for an information site, its hard to beat .info
they are both good players in the market, but generally .org is more expensive in the aftermarket