I went on the Conquest on it's first 4nt Inaugual cruise out of New Orleans in Nov 2002. It is quite a bit larger than the others you have been on. The decor is toned down compared to the others. The theme is artists--Monet, Renior etc. It has some unique features. When I was on it the upper level of the Lido deck restaurant had a small seafood stand at lunch time. Look for it, but that was in 2002. It has a three deck main lounge. I'm not sure where it was located, but they had a nice quiet sitting room that had a fake fireplace. It might be the Club Lounge on the Atlantic deck.
It is a beautiful ship. I have always had good food on all 27 Carnival cruises I have taken. Have a great cruise.