Patpong is one of three 'nightlife' areas in Bangkok. The other two are Nana Plaza and Soi Cowboy. Patpong is mostly a tourist destination and is only still there because of its reputation. New Orleans has much more on display than Patpong.
Pattaya is a beach area about an hour south of Bangkok. It is truely the sin capital of the world.
Patong is one of the beaches in Phuket and was damaged by the tsunami.
Phuket-surely you jest?
I've been to Pattaya twice, 80 and 81