As Ron said, everyone is different. Back when I was fist diagnosed, I was on Sulfasalazine on and off (when the theory was to stop meds once remission was achieved)....then I was on Asacol, have been on 6-MP, and for the past 10+ years Remicade.
A lot depends on the severity of disease and where it is located in your body, and also how a person reacts to different medications.