There's not much I can add to the opinions re: the inherent "rightness" (rightiousness!) of tubes. I can voice my opinion that the Audio Critic is a hack publication with no credibility whatsoever. Just sit down and listen. The differences are quite clear. After that, it comes down to what your huckleberry is -- for me it's tubes, and not just in the pre-amp.
SS vs Tube: What do you hear?
Peter Aczel, editor of The Audio Critic, says "Whatever vacuum tubes can do in a piece of audio equipment, solid-state devices can do better, at lower cost, with greater reliability" (issue 26, p5). What do you hear which causes you to select tubes over ss, or vice versa?