How do I travel from Washington, DC to Laurel, DE by Train or Bus???

I wish to travel by Bus or Train

Train is definitely the most pleasant. There is room to recline your chair, you can stand up and walk around if your legs get tired, the bathrooms are cleaner (the bus might not have bathrooms at all), you can sit in a different car if someone near you has a crying baby, and food is served. You'll prefer the train.