The Irish Lotto offers one of the best ratios of jackpot size to odds of winning. have the longest odds of winning, which is logical since more people play them. [UPDATED October ] With so many lotteries to play and so many new ones being added all the time Lottoland certainly gives you plenty of choice in games. Some people use this method and only play when the jackpot is particularly large. Related: These are the UK lotteries that give you the best.