Revenge from Mars is a fun game for sure. I own both RFM and SW Episode1. You cant go wrong with either.
In some ways, Star Wars Episode 1 is better i reckon because it has more features than RFM and because Lucas Light and Film (Star Wars creator George Lucas) was involved with the design and the audio and visual effects are much improved. Being the second Pin2000 game, Star Wars is a better package. But dont get me wrong, RFM is a great game as well.

You really need to play both games for a good hour or two before you decide. Find a member in your area who has either of the Pin2000 games and give them a good play.
To save arguments, I just bought both as keepers. I think you will be impressed if u play a good version of each.