Soccer

Biggest in what terms? Are we talking just English (Barclays) Premier League or you mean all of Europe?

Generally, for EPL, Manchester United is considered to be biggest club. They have loads of moolah - though they have recently incurred heavy losses - and have won the league 11 times.

In terms of "book value" the answer is Arsenal.

Both Arsenal and Spurs have large followings around the globe. Arsenal's
is a bit bigger, though, since they are the more successful side in Premier
League play.

GOONERS!!!

Arsenal in by far better then Tottenham because of their results, number of fans, and history

The OP uses the word "bigger" not "biggest".

I like Arsenal, like a team, of course, not because it was the trophy more, I appreciate the style of Arsenal, I believe most of the fans because of this in love with Arsenal. The game of Arsenal to make people feel the beauty of football. And the smooth attack make people enjoyed.