Which game for Big multi-ticket plays?

[PhFlex]

Hey everyone.

I'm following a system that involves playing a lot of tickets at once, in order to increase your odds in that game. So every few months I pool nearly all my lottery funds and buy £70+ worth of tickets. But which game should I play? Should I play:

Euromillions - highest payout for the jackpot plus multiple chances in the £1M raffle
Thunderball - highest Win/Odd ratio - so easier to win at the lower levels. Also half the price, so can buy more tickets
Lotto + 5 - 6 chances to win at least £250K, not just one
or
Plain lotto - harder odds than Thunderball, but higher payout and still half the price ?

Oh, and last time I played 35 lines on Lotto + 5, paid £70 and got back £30.

So which one is most worth playing?

Thanks for any tips & advice,

Flex

[Johnny's Amusements]

They are all on the same 50% payout so I would say it does not matter which one you play. Whichever one takes your fancy at the time will do, but I do not like Lotto +5. Shrapnel payouts!