[uhwhat]

Trains also sometimes have lounge cars, dining cars and theaters.

Buses confine you to a cramped seat and if you're lucky there's a tiny bathroom on board.

[DanBC]

In England some coaches (long distance buses) have tables (seat four people); power sockets and WIFI. They might have a fridge with cold bottled water.

Some buses have WIFI.

[baldfat]

We have wifi and nice coach buses in the US. Still don't want to ride them over a train. Trains are certainly faster and more dependable in terms of time of arrival.

[gradstudent]

This. Also, bus travel can induce motion sickness.