I am not sure if statistics of most wins in slots exist. Imho they are all the same. But if you want to find a slot where it is possible to play longer, more for same amount of money, then filter slots by free spins and play them. Maybe bother even more and try to sort with biggest RTP but that isnt that important, difference in 1%? When majority use less than 100 bucks to gamble? That not much. Rarely casinos provide information of number of gamblers that currently are using slot. Use that to filter unpopular slots.