Amman isn't big on the nightlife scene, if you are looking to go out and dance to good music I suggest you go to @Cube Lounge on Wednesday nights, they play the best hits from past years. Its fun for a group of friends and/or a couple
@Peking Restaurant has the best, they are not too oily and they get you more than one option for dipping sauce: soy sauce, hot and sour and sweet and sour
@Amman West Hotel is located in the 4th circle area, they have reasonable prices for catering, conferences and weddings. Check them out, ask for Alaa he is a Tipster who loves to help out