I have both machines sitting side by side, and while fish tails is the better looking machine Flintstones is the one that gets played the most. Flintstones was my first pin, and I still have it some 18 years later. I'm not sure I'll be able to say that about fish tails. Flintstones while not a deep pin in the ruleset department is vastly deeper than fish tails. Also as previously mentioned Flintstones has a wider array of shots.