If you are new, Ponderosa is good, it's affordable. but for me, it's a kind of boring already because, they do not change their menu for years now. The best buffets i can recommend are Intercontinental, they have lots of kinds of salads and deserts. Everyday they change menu, but its pricey, it is good to eat there only for occation. Marriot Hotel is less expensive than Hotel Intercon, and the food is excellent too, there is a seafood day buffet. If you are opt for morrocan nights, go to Regency opposite Womens Hospital. Great Wall  of China is also good for Chinese food, it is affordable and of great value. Caravan buffet is a good alternative for everyday cravings, they serve mostly Indian Food, Biryani- is always served, some Filipino delicacies are included. Merweb Hotel in Sadd have buffet where you can afford maybe for weekly i may say, but i don't like the atmosphere, It's so smokey just as you enter, and it goes until the buffet section. The variety of food is not much but good.

 I hope i have given you some choices of buffet...CIAO CHEN!