We also experienced a lot of difficulty with blocks, and as a result we have only done one block so far, at the Place d'Armes.We did HotelPlanner and honestly, I wasn't very impressed with the rates or conditions the hotels who responded offered us. I would recommend just contacting the hotels directly.Almost every hotel was quoting in the $180+ range per night, with a 3 night minimum, and they wanted a guaranteed booking of 90% of the rooms. One of the hotels that we really wanted to block rooms at (and that my parents stay at all the time) wanted all of the above conditions AND the guarantee that we would host either a bridal luncheon or a rehearsal dinner at their hotel with a food and beverage minimum of several thousand dollars. I don't remember the exact amount, but the conditions they wanted us to meet to block rooms there were so absurd they were almost insulting. Place d'Armes is the most conveniently located for our guests because our wedding is in the Cathedral, so we were very happy that they also offered us the best rates. Our block there is almost filled, so we are going to see if we can do a second block either there or at one of the other properties owned by the same company.