My favorite is BM66 but only the 2019 or newer manufactured models, basicly catwomen edition or newer. Best coded Stern ive played, assets are the best, has actual interactive mechs, and the fun factor is there. Any BM66 made before Catwoman shot like shit and felt clunky until Stern did some upgrades to ramps/wireforms and cabinet.
Ive had all 3 games your considering. TMNT pro, JP pro, and AIQ premium. Turtles was the most fun. AIQ was the best layout and JP was meh to me but i only played the movie code and wish I would of tried Sterns code. Just got a STh Pro and my initial thoughts is Medieval Madness and AFM with a shot or so missing and deeper code. My thoughts after just one session is its more fun then AIQ and JP but not quite as fun as TMNT. STh has a atmosphere from the sound package I havent felt before from any other pin.