Quoted from Rarehero:

Agree with all this but Metallica. Hammer blocks nothing, and is an awesome toy & physical ball lock. "Real" Spinners rule. Color changing GI FX are incredible. Color changing inserts do a better job of letting you know what your shots are than the red inserts of the Pro. Snake Jaw is an awesome "toy" that functions as a drop target & a ball catcher. Rising Grave Marker is cool. The game is significantly more alive and interesting.

Quoted from 85vett:

- Snake Jaw (often downplayed but makes a pretty big difference in gameplay)

Quoted from Rarehero:

During main gameplay, the jaw goes up and you have to open it before getting the ball in the mouth...so it's like a cool controlled drop target.

Quoted from Captain_Kirk:

Both versions shake, dippy.
Premium/LE has a more sophisticated mech which allows the ship to drop head first is a crashed mode when defeated. It stays this way during the Victory Laps mode, then regains upright position.
It's a neat effect, and I like it. Also, it is a mechanical, not cosmetic, difference between the Pro and Premium/LE models.
Care to whine about anything else?