TAF - classic
Congo - reminds me of TAF, builds up through the inserts and the balls come out of the volcano.
ST - Klingon multi ball with the lasers is awesome
GB - Storage facility mutli ball is incredible...maybe my favorite
XMEN - the balls being released and spun by the magnet is perfect
IJ - released by the idol is great
MET - sparky is simple, but with the light show and sounds, the effect is awesome