Hey Jess,
Yes, it very much depends on your symptoms, your history until your diagnosis and at the end also your tolerance of certain drugs. The standard treatments have also changed very much over the years. I'll give a brief overview:
1. 5-Asa/mesalazine: This was used in the past as the first option for long-term Crohn's treatment. It is a rather insufficient drug that has helped some patients, but not many. More and more doctors ignore 5-Asa and don't prescribe it, even if the patient just has few if any symptoms.
2. Azathioprine/6mp (immunosuppresives): The standard treatment since the 90s and before biologics were approved. It takes a while for those meds to kick in, they help up to 30-40% of patients to stay in remission. They can have various side effects, but for most patients and doctors the benefits outweight the potential problems.
3. Biologics (remicade, humira, cimzia): The standard treatment since about 10 years for most moderate-severe patients and in the last few years also the standard treatment for all newly diagnosed patients with just mild to moderate Crohn's. Helps 50% of patients to go and stay in remission. Is a bit more problematic than aza/6mp, but still benefits outweigh the risks.
4. Biologics/immunosuppresives combination: Recent studies show this is the most effective treatment with over 60% of patients going into remission and staying there - although it is probably the most invasive treatment version.
5. Prednisone / Budesonide: Those are corticosteroids which are used short term (a few weeks) to fight inflammation. Dangerous in the long-term (thinning out of tissue and various other side effects). In the past (up until the 90s) this was the first treatment option.
One problem today is that it very much depends on which GI you find what meds they prescribe. Some GIs are stuck in the past and will desribe nothing at all or 5-Asa, some GIs will go straight for biologics without considering biologics or immunosuppresives combination, some will also even go over the top and have you on a strong dosage of pred longer term. Some want to get you on aza or 6mp first before trying biologics (specifcally US insurance company want that because biologics are expensive...).
But to sum up a few facts:
1. Biologics/immunosuppresive combination is the most effective way to treat Crohn's today. There are concerns about doing that long-term though - but nobody really has any real long-term data.
2. Either biologics or immunosuppresives alone can get you into remission. Of course only if you also do your non-med Crohn's management. Most people are on either one of those.
3. Steroids are bad. That's just a fact. Unfortunately in many situations they are also unavoidable, specifically to treat severe flare ups.
I hope that helps a bit. There are many threads dealing with medication that go into more details.