I own both, and have TZ as my number 1 game of all time, until I bought the Wonka. with the latest code updates, Wonka is better. Both are now grail pins to me
EDIT: I want to add that I have a 100% restored, pristine, perfect-playing Twilight Zone. Not some blown out game with weak flippers, flaky optos and wonky powerball sensors. Definitely makes a difference.