I recently visited New Orleans, and for fun, I stayed at the Hilton, Sheraton, and Marriott. I have top tier status with all three chains. Overall, I rate the Marriott as the best What I liked: . The lounge on the ground floor is amazing and it is the single reason that I rate this hotel so high. They serve omelettes to order for breakfast, and fantastic snacks in the evenings. It is free to platinum members. It does not have the views that the sheraton and Hilton have, but the service more than makes up for it. . The hotel is short walk to the casino . My26th floor room was very quiet What I i did not like . When you enter, there are steps for entering the hotel. For those with mobility issues, this might be important.
If you want fancy, you go to Ritz... if you want authentic and historic, you go to Historic New Orleans Hotel - Le Pavillon Hotel
It is absolutely gorgeous and very historic. It is rumored to be haunted. Last time I stayed there, I asked one of the housekeepers if she had ever witnessed any ghost activity... She told me of a story where she had methodically gone from room to room to clean up the rooms, and she had to return to one of the rooms to bring an item that she had run out of. When she returned to this room, the pillows were no longer at the head of the bed! They were relocated to the bottom of the bed. She said she had other experiences, but she said the ghosts are friendly and playful. I personally didn't experience anything, but sometimes the rumors are interesting and fun to hear about. The decor is very beautiful and the staff were very friendly.
Living right outside of New Orleans, I never have stayed at the Ritz or the JW there. I have stayed at the Marriott for a conference for work, and it was very nice. The lobby/bar area always had something going on if you didn't want to walk to the Quarter anywhere. Those other two are so close to each other though, neither is necessarily that much closer to anything. New Orleans is very much a walking city. The biggest issue you'll have would be crossing Canal if coming from Bourbon slightly intoxicated. Be safe! Be careful! Enjoy!