I always had this feel that the slots are rigged. I always stayed away from the slots... I don't know, I just didn't like them. Blackjack, dice, roulette and poker are my favorites.
Dice is really my favorite since it is so easy to bet. Slots are good too but as what you've said it is rigged. Maybe we can't tell that all slots game are rigged, maybe there are only selected casinos which offer rigged slots.