Quoted from _KIRK_:Yes, I know it ultimately comes down to my preference, but I'd love some input regarding GotG vs. BM66.
All the suggestion on (different pinball machines) other than GOTG and Batman 66 you are considering is not adding to the main question.
Based on what have stated you only have played GOTG . The Pro is were it is at. The LE and Premium the Groot HANDs block the view of the shots . I did not like that at all. So GOTG pro would be good as you like the machine and that is what counts. I will add I do not like GOTG . But that is me.
You need to play Batman 66 before you spend the money . So you can make an informed choice as each pinball machine ever made has the ability to strike a cord of the player over an other pinball. Each pinball is Subjective .With out playing Batman 66 first unless money is no object to you. Do not buy Batman 66 till you play it .
I like Batman 66 and I would push you in that direction . Gomez has designed an other unique playfield and the art game play and theme are great.
Go find one to play .
Rent the Batman series from VUDU it is good . Good luck.