Perhaps Nadya is being too modest or is close to see it, but Bis has my favorite steak tartare in the city. I also recently had Circle Bistro's version and it was definitely up to par. Be sure to skip the tableside preparation at Les Halles. I tried it during the Beaujolet fest last month and it was surprisingly (at least to me) terrible. This was before the wine started to free flow, so I'm pretty sure it was no good.
For any tartare fans seeking a different experience, I highly recommend finding out when Poste is serving the salmon tartare and getting there post-haste. The tartare is served in 3 individual "ice cream cones" with creme fraiche and perhaps some other little things that escape me now. Total gluttony.
Last week the lamb tartare, lamb spring rolls and a 1/2 bottle of Mark West pinot did quite the trick at Firefly in advance of the annual trip to see "The Messiah" at the Ken Cen.
Mmmmm...raw meats...