Friday night 6 Nations games are not in the spirit of the competition IMO.
Saturdays were excellent, as you could all meet in the pub around lunchtime, watch 2 or 3 of the games, and then get very drunk celebrating afterwards long into the night, and then make your way home on the last train.
Now with the Friday game, its a rush to get to the stadium if you have to work, then once the game finishes around 10pm, everyone wants to get home at the same time, so the train station is absolutely packed.