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I'd say that any IRL pinball is inherently fun simply because you've always got the feel and the physics working for you. When it comes to TPA or any simulation, you're far more reliant on great rulesets and artwork for your enjoyment. I don't personally get much from playing most EMs in TPA because the physical nudging and precision flipping are the things that translate less well. Likewise, most of the Premier and Gottlieb tables don't have rulesets that hold my interest as well as the equivalent Bally and Williams tables. There's a reason the great designers of Bally and Williams tables are so highly thought of. What Steve Ritchie, Pat Lawlor, Brian Eddy, John Popadiuk etc. did wasn't easy and sadly the Premier tables just can't compete with the best in terms of depth, flow and polish.