Which is the bigger Rugby League region,East or West of the pennines?

And that's over the long history of our game.

Which has given more to the sport, trophys and produced the best players/teams etc.

South Yorkshire. Two teams, two champions!

Having lived in both, it pains me to say Yorkshire. In the West we are overshadowed by the big Premiership clubs which detracts attention etc.

Difficult one.

Yorkshire has the most clubs in the pro game and isn't overshadowed by football as much.
The North West currently has the three top clubs and have done for the last three years but is in the presence of the biggest football clubs in the world.

Depends what you consider the most important for "success". Wigan and Saints have a bit of a monopoly on the trophies over the last few years. Only Bradford and Leeds recently have challenged that.

West of the pennines punches way above it weight in all sports & has produced chamopions in all major sports ( Man U & city Liverpool, Wigan Saints, Lancs cricket, Even Sale won RU one year, the GB cycle team trained in Manchester for the olympics) but the bigger area for league is east in Yorkshire, but bigest is not always best.

London

North Catalunya

New South Wales!

Yorkshire will have had more participants and active fans over the history of the game.

To the point about trophies and best players - Wigan have probably done more than any club to raise the profile of the game since the 80's.

Leeds Owl, the North West has 3 top clubs (Warrington, Wigan and Saints) True? All have participated in finals in the last 3 years, 7 finals between them and 3 trophies in 3 years I think. They're 'top club' statistics, so I'm not sure what you're basing your argument on as the original post never claimed they were champions every season, merely that they were top clubs. Are they not?

take the number of active particpants by LA district, divide it by the population of each, and the top 2 Districts are...

Allerdale and Copeland

That doesn't make them the biggest which is what the OP asked. Your formula offers a proportionate rate per head.

The South East as it's described has to be the biggest RL region, or the south of France.

What are RL regions?

in participation terms, West Cumbria is as big a 'RL region' as anywhere else.

Yorkshire, as RL has great roots in the major city's of Leeds, Bradford and Hull. In Gods land the city's ignore the sport and its roots lie in the old pit and mill towns, SL is 7/5 and the Championship 8/2. The demise of clubs such as Oldham and Swinton should be a concern, and a lesser degree Rochdale.