Hotel NegociantsvsHotel Transatlantique
Hotel Transatlantique and Hotel Negociants are both recommended by those who travel for a living. On balance, Hotel Transatlantique scores slightly better than Hotel Negociants. Hotel Transatlantique scores 77 with approval from 2 reviews including Lonely Planet, Rough Guide.
Hotel Negociants
 Rough Guide
116 Rue Allah ben Abdellah, Casablanca, Morocco
From $0/night
 Star
 "It has recently been refurbished, with clean, comfortable rooms (some en suite), and is a popular choice with Moroccan families." 
Hotel Transatlantique
 Rough Guide
 Lonely Planet
79, rue Chaouia (ex Colbert), Casablanca 2000, Morocco
From $54/night
- Bar/Lounge
 - Free Internet
 - Room Service
 - Free Breakfast
 - Shuttle Bus
 - Laundry Service
 
 Star
 "Founded in 1922 in a Lyautey colonial building, and recently refurbished with a great mix of colonial decor." 
 "Set in one of Casa’s architectural gems, the decor at this 1922 hotel is all a bit over the top." 
 i 
Avoid the 1st floor, as it gets the brunt of noise from the popular and very rowdy piano bar and nightclub.