My experience with owning Mando LE: Mando is a tough shooter because of tight windowed targets. Dwight Sullivan and team added Challenge mode in code version 0.98. This mode is a shortcut to the Encounter wizard mode and requires a good sense of shooting for the tight right side turns, ramps and scoop. It's good practice for that. There are SDTMs from the U-turn return and the Razor Crest middle shot. Flipper cradling seems to be mandatory on Mandalorian for lining up tight shots. There are long pauses in the game for video play. My 8 year old plays it constantly and is better at the game than I am, he likes the challenge. It has opened up his interest in general for pinball. Not sure Godzilla would have done that on its own. Coupled with a fan layout pin, that has more open shots, it is a good complement. I have it coupled with MMR. If it will be your only pin, the swap sell/trade advice here and buy what you like better now is the best approach IMO. I have not played Godzilla yet, but it looks like more flowy except for the magnet. If you or the other players like uninterrupted flow better that might be the best choice for you. Personally the Godzilla theme is not my bag, but Mando is, for my whole family it is. GL.
Edit: Maybe for others who have a lineup, Mando coupled more flowy Godzilla is a good choice.