Of people, just for fun / crazy curiosity, taking Greyhound Coast to Coast. I tell ya, Greyhound is BRUTAL! One video showed a group dropped off in freezing weather at 1 AM, having to wait for a relief Driver. Bus Stations are Cesspools. Amtrak? Rode just one time. I was surprised at the amount of leg room and I'm 6'5"
My Mom and Step Dad took the Amtrak Auto Train from Maryland to Florida, about 35 years ago. Getting a Sleeper car is a significant jump in cost. But.....I'd go Amtrak over Greyhound ANY day!