I love three flipper games, especially when they serve multiple uses. X-Men is a perfect example. Two distinct shots with Rogue and Storm, plus the insanely cool Gambit hurry-up. Three different feeds, short plunge for distinct skill shots, Cyclops for a nice controlled feed, and Beast for a "oh my God that's fast good luck hitting it and if you do it will probably reject from going airborne at Mach 10" feed.

Stern Jurassic Park also. Two main shots, upper loop and Raptor Tower ramp, but also the very important supply drop target. Four feeds, controlled out of the pops, a bit faster out of the spinner or right ramp, and screaming fast from the loop. Perfect use!

That said, it's sad that the vast majority of three flipper games use a right upper. I would love to see more left uppers used...Tron and JJP POTC are the only two modern three flipper games I can think of that use a left upper (though I might be forgetting some).