OP here. Work isn't paying since this is an "extra" conference, so on my own dime. However, do want to take a comfortable option, so not sure about Greyhound.
I remember years ago taking the Boston-NY Greyhound bus, and it wasn't a pleasant experience--plus, there was a drunk guy in the back that had to be escorted off before we departed.
So no Fungwah-type bus here? And why is Megabus better than Greyhound?