hmm.....football always was the most popular sport.
But then cricket was probably 2nd place in the 80s with Botham, then once England got **** in the 90s and then came good in the 2000s I guess it got popular again. As of now, I'd say it's still cricket, with rubgy union and league. Snooker, nobody watches nor gives a **** about, tennis is only for Wimbledon, athletics isn't that popular either, etc.