My favorite is "Lay it Down". I don't see too many folks citing a similar preference, but IMO that's the one with the best songs all the way through. Trinity Sessions surely isn't a bad place to start and it has that unique "airiness" given the way it was recorded. "One Soul Now" is also good.
Truth is I don't think there is a bad Cowboy Junkies CD.
Truth is I don't think there is a bad Cowboy Junkies CD.