I can second Swampwalker's opinion that ZYX Artisan is very good. I have not compared it in the same system with all the great ones noted above, but I have heard some of them in systems I greatly respect and enjoy, and have no desire to 'upgrade' to one of those other megabuck phono stages. I think the Artisan swings above its weight (both figuratively and literally - the thing weighs almost nothing). I have also used it in mono and compared it against the Zanden mono stage reasonably extensively (got an offer I could not refuse on the Zanden). The ZYX is smooth and silky and does not sound 'solid-state-y' to my ears, but the Zanden does have a bit more lushness (euphonia).
Among those above which I have heard, if they were all the same price, the one I would choose would be the Connoisseur. I have heard one twice, and each time was wonderful. I also like the line stage.